Row sums of triangle A134280 (S2(6)').

A134281

Row sums of triangle A134280 (S2(6)').

Terms

    a(0) =1a(1) =7a(2) =73a(3) =1165a(4) =23737a(5) =611221a(6) =18690205a(7) =668252677a(8) =27220297405

External references