a(n) = 8*binomial(7*n + 8, n)/(7*n + 8).

A233835

a(n) = 8*binomial(7*n + 8, n)/(7*n + 8).

Terms

    a(0) =1a(1) =8a(2) =84a(3) =1008a(4) =13090a(5) =179088a(6) =2542512a(7) =37106784a(8) =553270671a(9) =8391423040a(10) =129058047580

External references