G.f.: x = Sum_{n>=1} a(n)*x^n * Sum_{k=0..n} (k+1)*binomial(n,k)*(-x)^k.
A182520
G.f.: x = Sum_{n>=1} a(n)*x^n * Sum_{k=0..n} (k+1)*binomial(n,k)*(-x)^k.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =42a(4) =264a(5) =1916a(6) =15744a(7) =144546a(8) =1467544a(9) =16335972a(10) =197916768a(11) =2593286692a(12) =36547123728a(13) =551308006392
External references
- oeis: A182520