0,2
Table of n, a(n) for n=0..14.
Column k of A113389 = column 0 of A113370^(3*k+3) for k>=0.
(PARI) a(n)=local(A, B); A=Mat(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^(3*j-2))[i-j+1, 1])); )); A=B); (A^6)[n+1, 1]
Cf. A113389, A113378 (column 0), A113391 (column 2), A113370.
Sequence in context: A090358 A264407 A112942 * A267080 A229002 A122020
Adjacent sequences: A113387 A113388 A113389 * A113391 A113392 A113393
nonn
Paul D. Hanna, Nov 14 2005
approved
