A113353 Column 3 of triangle A113350, also equals column 0 of A113340^8.

1, 8, 92, 1324, 23010, 471724, 11198006, 303137822, 9239501237, 313689623136, 11755195387720, 482435619984340, 21537360479898341, 1039758627381190676, 54002918637393187687, 3003770445258147527669, 178205904321326719715551

Offset

0,2

Links

Table of n, a(n) for n=0..16.

Prog

(PARI) a(n)=local(A, B); A=matrix(1, 1); A[1, 1]=1; for(m=2, n+1, B=matrix(m, m); for(i=1, m, for(j=1, i, if(i<3 || j==i || j>m-1, B[i, j]=1, if(j==1, B[i, 1]=1, B[i, j]=(A^(2*j-1))[i-j+1, 1])); )); A=B); (A^8)[n+1, 1]

Crossrefs

Cf. A113340, A113350, A113346 (column 0), A113351 (column 1), A113352 (column 2), A113354 (column 4).

Sequence in context: A277307 A255520 A305967 * A081624 A298188 A299083

Adjacent sequences: A113350 A113351 A113352 * A113354 A113355 A113356

Keyword

nonn

Author

Paul D. Hanna, Nov 08 2005

Status

approved