The arithmetic mean of (2k+1)(-1)^k*A_k (k=0,...,n-1), where A_0, A_1,... are Apéry numbers given by A005259.

A178791

The arithmetic mean of (2k+1)(-1)^k*A_k (k=0,...,n-1), where A_0, A_1,... are Apéry numbers given by A005259.

Terms

    a(0) =1a(1) =-7a(2) =117a(3) =-2441a(4) =57449a(5) =-1453635a(6) =38609845a(7) =-1061792695a(8) =29973352185a(9) =-863536596143

External references