Numerators of successive partial sums of sum(1/(2^n-1)).

A087689

Numerators of successive partial sums of sum(1/(2^n-1)).

Terms

    a(0) =1a(1) =4a(2) =31a(3) =54a(4) =1709a(5) =15536a(6) =1982837a(7) =33790906a(8) =2469747943a(9) =27183776108

External references