a(n) = [y^(n-1)] Product_{k=0..n-2} (n + k*y + n*y^2) for n > 1 with a(1) = 1.
A324304
a(n) = [y^(n-1)] Product_{k=0..n-2} (n + k*y + n*y^2) for n > 1 with a(1) = 1.
Terms
- a(0) =1a(1) =0a(2) =18a(3) =96a(4) =4300a(5) =81360a(6) =3604342a(7) =128389632a(8) =6704335980a(9) =346778956800
External references
- oeis: A324304