A102103 Column 1 of triangular matrix A102101, which shifts upward to exclude the main diagonal under matrix fourth power.

0, 2, 16, 1040, 196080, 82196224, 65585046960, 89664824687968, 194650170795350624, 633421180929983545024, 2953697281799409438455088, 19035190329068182887341039344, 164578521474330559730154886587328

Offset: 0

Author

Paul D. Hanna, Dec 29 2004

Keywords

• nonn

Crossrefs

Cf. A102101.

Programs

PARI

{a(n)=local(A=matrix(2,2),B);A[1,1]=1; for(m=2,n+1,B=matrix(m,m);for(i=1,m, for(j=1,i, if(j==i,B[i,j]=j,if(j==1,B[i,j]=(A^4)[i-1,1], B[i,j]=(A^4)[i-1,j]));));A=B); return(A[n+1,2])}