Guest Posted March 16, 2009 Report Share Posted March 16, 2009 Me and my brother made up this sequence 1,25,9,81,49 What are the nbext 5 numbers? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 16, 2009 Report Share Posted March 16, 2009 169, 121, 289, 225, 361 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 16, 2009 Report Share Posted March 16, 2009 169, 121, 289, 225, 361 Sorry, No Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 16, 2009 Report Share Posted March 16, 2009 Got me then, because the original sequence is 1^2, 5^2, 3^2, 9^2, 7^2.. which would logically extend to 13^2, 11^2, 17^2, 15^2, 19^2. The pattern is add 4, subtract two - square the result each time. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 16, 2009 Report Share Posted March 16, 2009 225, 169, 529, 441, 1089 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 16, 2009 Report Share Posted March 16, 2009 I think this is right, my initial error is that the real sequence was +4, -2, +6, -2 which extends logically to +8, -2, +10, -2, +12 - obviously squaring all the results. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 16, 2009 Report Share Posted March 16, 2009 (edited) Got me then, because the original sequence is 1^2, 5^2, 3^2, 9^2, 7^2.. which would logically extend to 13^2, 11^2, 17^2, 15^2, 19^2. The pattern is add 4, subtract two - square the result each time. You are correct. I think you mis typed it. Try my next one.169,121,289,225,,441 you put 169,121,289,225,361 361 would have been the next number. Edited March 16, 2009 by The monkey of the jungle Quote Link to comment Share on other sites More sharing options...
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Guest
Me and my brother made up this sequence
1,25,9,81,49
What are the nbext 5 numbers?
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