a(n) = (1/2) * Sum_{k>=0} (2*k + n)^n / 2^k.
A337027
a(n) = (1/2) * Sum_{k>=0} (2*k + n)^n / 2^k.
Terms
- a(0) =1a(1) =3a(2) =24a(3) =293a(4) =4784a(5) =97687a(6) =2393472a(7) =68405073a(8) =2233928448a(9) =82063263371
External references
- oeis: A337027