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May 27, 2016
Posted by **Anonymous** on Tuesday, August 7, 2012 at 6:46pm.

.1, 1, 2, 4, 7, _

.4, 9, 16, 25,_

Explain. I need help explaining. Thank you.

- math -
**Steve**, Wednesday, August 8, 2012 at 10:10amFirst looks like a sort of Fibonacci sequence, where each term is the sum of the three previous terms, making the sequence

1,1,2,4,7,13,24,44,...

However, that assumes a leading term of zero.

The leading .1 throws me off.

Or, it could be that each term is one less than a Fibonacci number:

Fib: 1 2 3 5 8 13 21 34 ...

You: 1 1 2 4 7 12 20 33 ...

The second one is obviously a sequence of perfect squares. Next is 36.