Guest Posted November 5, 2008 Report Share Posted November 5, 2008 Here are several number patterns: if you solve them all you get a high five; not from me of course, but from someone, eventually, sometime. 1. 4,8,48,2208,4870848 2. 2,4,7,28,33,198 3. 7,8,5,3,4 4. 2,4,16,10,20,400,394 5. 1,2,3,5,7,11,13 6. 4,19,34,49,3,18,33,48,14,29 7. 1,5,14,30,55 8. 0,10,1110,3110,13,2110 -unoriginal old one, but good if you have never seen it. 9. 8, 10, 16, 28, 48 -my favorite I am not sure about the difficulty, some of them may be hard, we'll see.... Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 5, 2008 Report Share Posted November 5, 2008 x2, +3, x4, +5, x6 2(x2), 4(+3), 7(x4), 28(+5), 33(x6), 198 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 5, 2008 Report Share Posted November 5, 2008 (edited) Here are several number patterns: if you solve them all you get a high five; not from me of course, but from someone, eventually, sometime. 1. 4,8,48,2208,4870848 2. 2,4,7,28,33,198 3. 7,8,5,3,4 4. 2,4,16,10,20,400,394 = [x2, to the second power, -6, x2, to the second power, -6] 5. 1,2,3,5,7,11,13 6. 4,19,34,49,3,18,33,48,14,29 7. 1,5,14,30,55 8. 0,10,1110,3110,13,2110 -unoriginal old one, but good if you have never seen it. = ['0', one (1) 0 = (10), one (1) one (1) and one (1) zero (0) = (1110), etc. ] 9. 8, 10, 16, 28, 48 -my favorite I am not sure about the difficulty, some of them may be hard, we'll see.... Edited November 5, 2008 by bobkerolls Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 5, 2008 Report Share Posted November 5, 2008 8, 10, 16, 28, 48, 78, 120... I got this answer by figuring out what the difference in between 8, 10, 16, 28, 48. Which is 2 (10-8), 6 (16-10), 12 (28-16), 20 (48-28). I then figured out the difference between these numbers. Which is 4 (6-2), 6 (12-6), 8 (20-12). And yet again the difference between these numbers... 2 (6-4), 2 (8-6) So sticking with this pattern... 4, 6, 8, 10 (8+2=10) 2, 6, 12, 20, 30 (20+10=30) 8, 10, 16, 28, 48, 78 (48+30=78) 4, 6, 8, 10, 12 (10+2=12) 2, 6, 12, 20, 30, 42 (30+12=42) 8, 10, 16, 28, 48, 78, 120 (78+4=120) Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 5, 2008 Report Share Posted November 5, 2008 Here are several number patterns: if you solve them all you get a high five; not from me of course, but from someone, eventually, sometime. No high fives here... 1. 4,8,48,2208,4870848 => ni = ni-1 * ( ni-1 - 2 ) Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 6, 2008 Report Share Posted November 6, 2008 8, 10, 16, 28, 48, 78 ni = i3/3 - i/3 + 8 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 6, 2008 Report Share Posted November 6, 2008 1,5,14,30,55, 91 add on successive squares for the next term - ni+1 = ni + (i+1)2 Quote Link to comment Share on other sites More sharing options...
0 bonanova Posted November 6, 2008 Report Share Posted November 6, 2008 5. primes, except today 1 is not considered prime. 6. 4,19,34,49, 3,18,33,48, 14,29,44,59, 13,28,43,58, 24,39 ... the bold numbers seem ad hoc.That leaves 3. 7,8,5,3,4 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 6, 2008 Report Share Posted November 6, 2008 7,8,5,3,4 - two ideas here, neither seems great. One is that it is a pattern of (+1,-3,-2,+1), although that seems random. The other option is that you add the previous two numbers, and drop the first digit of the sum (7+8=15 [drop the 1 to make it 5], 8+5=13 [drop the 1 to make it 3). The problem is with 5+3=8, maybe when it is a single digit answer you divide by half? Damn - why did I even post this? BACKSPACE Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2008 Report Share Posted November 7, 2008 7,8,5,3,4 - two ideas here, neither seems great. One is that it is a pattern of (+1,-3,-2,+1), although that seems random. The other option is that you add the previous two numbers, and drop the first digit of the sum (7+8=15 [drop the 1 to make it 5], 8+5=13 [drop the 1 to make it 3). The problem is with 5+3=8, maybe when it is a single digit answer you divide by half? Damn - why did I even post this? BACKSPACE I do not know why you posted this, ha. All other puzzles have been solved. Oh just noticed that I messed up too, so I apologize it is currently impossible. Yet the hint below has the correct pattern, sorry guys. SO JUST NUMBER 3 IS LEFT...good luck guys. Hint(this would be the COMPLETE pattern, meaning there are no numbers after this) 7, 8, 5, 5, 3, 4, 4, 6, 9, 7, 8, 8 and this one is solvable, ha. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2008 Report Share Posted November 7, 2008 I do not know why you posted this, ha. All other puzzles have been solved. Oh just noticed that I messed up too, so I apologize it is currently impossible. Yet the hint below has the correct pattern, sorry guys. SO JUST NUMBER 3 IS LEFT...good luck guys. Hint(this would be the COMPLETE pattern, meaning there are no numbers after this) 7, 8, 5, 5, 3, 4, 4, 6, 9, 7, 8, 8 and this one is solvable, ha. Number of letters in January, February etc. Beleive it or not, that did cross my mind as a possible solution initially, but it didn't fit the original numbers Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2008 Report Share Posted November 7, 2008 Number of letters in January, February etc. Beleive it or not, that did cross my mind as a possible solution initially, but it didn't fit the original numbers yeah i figured it may have crossed a few people's minds, so sorry for the error, but nice job everyone. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 7, 2008 Report Share Posted November 7, 2008 (edited) 7, 8, 5, 5, 3, 4, 4, 6, 9, 7, 8, 8 and this one is solvable, ha. number of letters in the names of the months edit: too late I should have finished reading the thread before posting... Edited November 7, 2008 by Cherry Lane Quote Link to comment Share on other sites More sharing options...
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Here are several number patterns: if you solve them all you get a high five; not from me of course, but from someone, eventually, sometime.
1. 4,8,48,2208,4870848
2. 2,4,7,28,33,198
3. 7,8,5,3,4
4. 2,4,16,10,20,400,394
5. 1,2,3,5,7,11,13
6. 4,19,34,49,3,18,33,48,14,29
7. 1,5,14,30,55
8. 0,10,1110,3110,13,2110 -unoriginal old one, but good if you have never seen it.
9. 8, 10, 16, 28, 48 -my favorite
I am not sure about the difficulty, some of them may be hard, we'll see....
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