A127233 a(n) = n!*(n*(n+1)/2)!.

1, 1, 12, 4320, 87091200, 156920924160000, 36785478363630796800000, 1536637256843037856927580160000000, 14998770936168817088309737749441675264000000000, 43408511507665453002645192043544271642563569306828800000000000

Offset: 0

Author

Artur Jasinski, Jan 09 2007

Keywords

• nonn

Crossrefs

Cf. A127234, A127236.

Programs

Maple

seq(n!*(n*(n+1)/2)!,n=0..9); # Emeric Deutsch, Jan 20 2007

Mathematica

Table[n!((n(n+1))/2)!,{n,0,10}] (* Harvey P. Dale, Aug 27 2021 *)

Extensions

More terms from Emeric Deutsch, Jan 20 2007