a(n) = Sum_{k>=0} (n*k - 1)^n / 2^(k + 1).
A330604
a(n) = Sum_{k>=0} (n*k - 1)^n / 2^(k + 1).
Terms
- a(0) =1a(1) =0a(2) =9a(3) =278a(4) =16145a(5) =1471774a(6) =194652577a(7) =35275961958
External references
- oeis: A330604
A330604
a(n) = Sum_{k>=0} (n*k - 1)^n / 2^(k + 1).