Numerator of b(n) = n * Sum_{k=2^n..2^(n+1)-1} (-1)^k/k.

A073099

Numerator of b(n) = n * Sum_{k=2^n..2^(n+1)-1} (-1)^k/k.

Terms

    a(0) =1a(1) =31a(2) =12307

External references