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

A004361

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

Terms

    a(0) =1a(1) =42a(2) =1128a(3) =24804a(4) =487635a(5) =8936928a(6) =156238908a(7) =2641902120a(8) =43595145594a(9) =706252528630

External references