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# List of numbers

3 replies to this topic

### #1 Thorak

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Posted 11 August 2014 - 11:40 PM

2219,6658,3329,9988,4994,2497,7492,3746,1873,5620,2810,1405,4216,2108,... What is the index of the first element of this sequence that is equal to 1? Index of 2219 is 1.

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### #2 bonanova

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Posted 14 August 2014 - 07:49 AM

I kept reading this as, what is the index of the first term whose index is equal to 1? Argh.
It's what is the index of the first term whose value is equal to 1.

So now I ask, is that term 1 or is it 0001?
That is are the terms simple numbers? or are they 4-tuples?
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Vidi vici veni.

### #3 Quantum.Mechanic

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Posted 14 August 2014 - 11:45 AM   Best Answer

Spoiler for 3x+1

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### #4 Thorak

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Posted 14 August 2014 - 02:14 PM

Yeah u are right

Spoiler for

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