a(n) = (1/n!) * Product_{k=1..n} (k^3 + 1).
A262011
a(n) = (1/n!) * Product_{k=1..n} (k^3 + 1).
Terms
- a(0) =1a(1) =2a(2) =9a(3) =84a(4) =1365a(5) =34398a(6) =1244061a(7) =61136712a(8) =3920391657a(9) =317987323290
External references
- oeis: A262011
A262011
a(n) = (1/n!) * Product_{k=1..n} (k^3 + 1).