a(0) = 1, a(1) = 2; a(n) = n * (n+1) * a(n-1) + a(n-2).
A347051
a(0) = 1, a(1) = 2; a(n) = n * (n+1) * a(n-1) + a(n-2).
Terms
- a(0) =1a(1) =2a(2) =13a(3) =158a(4) =3173a(5) =95348a(6) =4007789a(7) =224531532a(8) =16170278093
External references
- oeis: A347051