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A Factorial Evaluation (
Posted on 20070112
)
Let n be a positive integer and let f(n)= 1²!+ 2²!+ 3²!+...+n²!
Determine polynomials P(n) and Q(n) such that f(n+2)= P(n)f(n+1)+ Q(n)f(n).
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Submitted by
K Sengupta
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The Facts are out
 Comment 2 of 5 
I don't really see where that hint leads
f(n+1)f(n)=(n+1)²!, f(n+2)f(n+1)=(n+2)²!
so f(n+2)=(n+2)²!(n+1)²!+2f(n+1)f(n)
Posted by
Gamer
on 20070121 20:26:41
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