A102322 Column 1 of triangular matrix A102320, which that satisfies: T(n,k) = [T^2](n-1,k) when n>k>=0, with T(n,n) = (2*n+1).

0, 3, 9, 72, 945, 17568, 427770, 12979080, 473981445, 20308813128, 1001231706582, 55927084380552, 3495759750651978, 242012640619081152, 18398411206663695732, 1524754064472700613328, 136890662566189661556525

Offset: 0

Author

Paul D. Hanna, Jan 05 2005

Keywords

• nonn

Crossrefs

Cf. A102087, A102320.

Programs

PARI

{a(n)=local(A=Mat([1,0;1,1]),B); for(m=2,n+1,B=matrix(m,m);for(i=1,m, for(j=1,i, if(j==i,B[i,j]=2*j-1,if(j==1,B[i,j]=(A^2)[i-1,1], B[i,j]=(A^2)[i-1,j]));));A=B);return(A[n+1,2])}