Trying to define a way to generate the terms of a sequence, and starting with the number 5, I found, surprisingly, that the way I used generated this sequence:

5, 8, 11, 5, 8, 11, 5, 8, 11, ...

And these 3 numbers repeat in this order indefinitely.

Define a simple way to generate this sequence.

We've had two good solutions, so can I cheat with:
u(1)=5, u(2)=8, u(n)=24-u(n-1)-u(n-2) for n>2 ?

Posted by Harry on 2009-03-07 19:22:16