0,2
Table of n, a(n) for n=0..14.
Column k of A113381 = column 0 of A113370^(3*k+2) for k>=0.
(PARI) {a(n)=local(A, B); A=Mat(1); for(m=2, n+2, 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^8)[n+1, 1]}
Cf. A113381, A113375 (column 0), A113382 (column 1), A113370.
Sequence in context: A151834 A007762 A211825 * A218671 A045754 A173774
Adjacent sequences: A113380 A113381 A113382 * A113384 A113385 A113386
nonn
Paul D. Hanna, Nov 14 2005
approved
