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%I #4 Mar 30 2012 18:36:56
%S 1,1,-6,224,-39424,30277632,-98180268032,1321338098679808,
%T -73064711504598663168,16493270769791857518968832,
%U -15132641904367108441083979235328,56258298143912014448000446346897129472,-845539117695226477286180063077230730209656832
%N Column 0 of triangle A117254.
%F a(n) = [prod_{j=0..n-1} (1-4*j)]/n! * 4^(n*(n-1)/2).
%o (PARI) {a(n)=local(m=1,p=4,q=4,r=1);prod(j=0,n-1,m*r-p*j)/n!*q^(n*(n-1)/2)}
%K sign
%O 0,3
%A _Paul D. Hanna_, Mar 14 2006