Binomial coefficient C(8n,n-5).

A004386

Binomial coefficient C(8n,n-5).

Terms

    a(0) =1a(1) =48a(2) =1540a(3) =41664a(4) =1028790a(5) =24040016a(6) =541931236a(7) =11919192480a(8) =257575523205

External references