A107673 a(n) = A107672(n)/(n+1)^3.

1, 1, 19, 1279, 190769, 50664371, 21139541089, 12783260017161, 10590309839157381, 11531675416606553251, 15987041289872773372042, 27515661456632011548886402, 57600689265868641385517070539

Offset: 0

Author

Paul D. Hanna, Jun 07 2005

Keywords

• nonn

Crossrefs

Cf. A107671, A107672, A107676.

Programs

PARI

{a(n)=local(P=matrix(n+1,n+1,r,c,if(r>=c,(r^3)^(r-c)/(r-c)!)), D=matrix(n+1,n+1,r,c,if(r==c,r)));(P^-1*D*P)[n+1,1]/(n+1)^3}