Heptagorials: n-th polygorial for k=7.

A084940

Heptagorials: n-th polygorial for k=7.

Terms

    a(0) =1a(1) =1a(2) =7a(3) =126a(4) =4284a(5) =235620a(6) =19085220a(7) =2137544640a(8) =316356606720

External references