Constant term in the expansion of (1 + x + y + z + 1/x + 1/y + 1/z + x*y + y*z + z*x + 1/(x*y) + 1/(y*z) + 1/(z*x) + x*y*z + 1/(x*y*z))^n.
A328725
Constant term in the expansion of (1 + x + y + z + 1/x + 1/y + 1/z + x*y + y*z + z*x + 1/(x*y) + 1/(y*z) + 1/(z*x) + x*y*z + 1/(x*y*z))^n.
Terms
- a(0) =1a(1) =1a(2) =15a(3) =115a(4) =1255a(5) =13671a(6) =160461a(7) =1936425a(8) =24071895a(9) =305313415a(10) =3939158905a(11) =51521082405a(12) =681635916325
External references
- oeis: A328725