%I
%S 1,1,2,13,209,7558,584837,94047241,30883147262,20492965038853,
%T 27310366246742669,72841632366094705678,388104936993411191934437,
%U 4126997257143980587638461521,87552095605182502304219090669762,3705151846765308253776294449404299133
%N Column 0 of triangular matrix A102583, in which row n is formed from the first differences of row (n1) of its inverse matrix square.
%o (PARI) {a(n)=local(A=Mat(1),B);for(m=2,n+1,B=matrix(m,m); for(i=1,m, for(j=1,i,if(j==i,B[i,j]=1,if(j==1,B[i,j]=(A^2)[i1,1], B[i,j]=(A^2)[i1,j](A^2)[i1,j1]));));A=B);return(A[n+1,1])}
%Y Cf. A102583, A102586.
%K sign
%O 0,3
%A _Paul D. Hanna_, Jan 22 2005
