Column 2 of triangle T=A134523, also equals column 0 of the matrix power T^6, where column k of T = column 0 of matrix power T^{(k+1)(k+2)/2} for k>=0.

A134525

Column 2 of triangle T=A134523, also equals column 0 of the matrix power T^6, where column k of T = column 0 of matrix power T^{(k+1)(k+2)/2} for k>=0.

Terms

    a(0) =1a(1) =6a(2) =51a(3) =636a(4) =11406a(5) =284541a(6) =9580386a(7) =424183235a(8) =24153149813

External references