perplexus.info :: Sequences : Square Pisano, Get Sequence?

Square Pisano, Get Sequence? (Posted on 2007-03-14)

Let S₁=S₂=1, S₃=4, and S_n+3= 2S_n+2+2S_n+1-S_n for n≥1.

Is S_p always a perfect square?

See The Solution Submitted by K Sengupta

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correction

| Comment 2 of 4 |

In my previous posting, the formula should read:

S(n) = ( (-2)(-1)^n + A^n + B^n )/5

Posted by Dennis on 2007-03-14 14:08:19

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