a(n) = (30*n)!*(5*n)!*(3*n)!/((15*n)!*(10*n)!*(7*n)!*(6*n)!).

A295464

a(n) = (30*n)!*(5*n)!*(3*n)!/((15*n)!*(10*n)!*(7*n)!*(6*n)!).

Terms

    a(0) =1a(1) =11090902680

External references