a(n) = Sum_{k>=0} k^n*A000045(k)/2^(k+1).
A098799
a(n) = Sum_{k>=0} k^n*A000045(k)/2^(k+1).
Terms
- a(0) =1a(1) =5a(2) =47a(3) =665a(4) =12551a(5) =296105a(6) =8382887a(7) =276877865a(8) =10451408231a(9) =443827193705
External references
- oeis: A098799
A098799
a(n) = Sum_{k>=0} k^n*A000045(k)/2^(k+1).