0,2

A113365 equals the matrix cube of A113350, where column 1 of A113350^3 = column 1 of A113340^4.

(PARI) {a(n)=local(A, B); A=matrix(1, 1); A[1, 1]=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^(2*j-1))[i-j+1, 1])); )); A=B); (matrix(#A, #A, r, c, if(r>=c, (A^(2*c))[r-c+1, 1]))^3)[n+2, 2]}

Cf. A113340, A113350, A113365 (=A113350^3), A113346 (column 0), A113367 (column 2); A113355 (=A113350^2), A113360 (=A113340^3).

Adjacent sequences: A113363 A113364 A113365 this_sequence A113367 A113368 A113369

Sequence in context: A059517 A097167 A125469 this_sequence A003379 A124206 A061636

nonn

Paul D. Hanna (pauldhanna(AT)juno.com), Nov 09 2005