Diagonal A(n,n) of array A(k,n) = Product of first n of k-gonal pyramidal numbers.

A140729

Diagonal A(n,n) of array A(k,n) = Product of first n of k-gonal pyramidal numbers.

Terms

    a(0) =40a(1) =2100a(2) =324000a(3) =117771500a(4) =86640153600

External references