

A107673


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


2



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

0,3


LINKS

Table of n, a(n) for n=0..12.


PROG

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


CROSSREFS

Cf. A107671, A107672, A107676.
Sequence in context: A319025 A253127 A078955 * A130037 A047910 A237429
Adjacent sequences: A107670 A107671 A107672 * A107674 A107675 A107676


KEYWORD

nonn


AUTHOR

Paul D. Hanna, Jun 07 2005


STATUS

approved



