a(n) = Sum_{k>=0} (n*k + 1)^n/2^(k+1).
A308864
a(n) = Sum_{k>=0} (n*k + 1)^n/2^(k+1).
Terms
- a(0) =1a(1) =2a(2) =17a(3) =442a(4) =22833a(5) =1942026a(6) =245246761a(7) =43001877122
External references
- oeis: A308864
A308864
a(n) = Sum_{k>=0} (n*k + 1)^n/2^(k+1).