Binomial coefficient C(8n,n-6).

A004387

Binomial coefficient C(8n,n-6).

Terms

    a(0) =1a(1) =56a(2) =2016a(3) =59640a(4) =1581580a(5) =39175752a(6) =927048304a(7) =21243342120a(8) =475491062970

External references