a(n) = (n+9)*a(n-1) + (n-1)*a(n-2), a(-1)=0, a(0)=1.
A176736
a(n) = (n+9)*a(n-1) + (n-1)*a(n-2), a(-1)=0, a(0)=1.
Terms
- a(0) =1a(1) =10a(2) =111a(3) =1352a(4) =17909a(5) =256134a(6) =3931555a(7) =64441684a(8) =1123029513a(9) =20730064706a(10) =403978495031
External references
- oeis: A176736