a(n) = (n+5)*a(n-1) + (n-1)*a(n-2), a(-1)=0, a(0)=1.
A176732
a(n) = (n+5)*a(n-1) + (n-1)*a(n-2), a(-1)=0, a(0)=1.
Terms
- a(0) =1a(1) =6a(2) =43a(3) =356a(4) =3333a(5) =34754a(6) =398959a(7) =4996032a(8) =67741129a(9) =988344062a(10) =15434831091a(11) =256840738076
External references
- oeis: A176732