a(n) = (10*n)!*(6*n)!*n!/((7*n)!*(5*n)!*(3*n)!*(2*n)!).

A295452

a(n) = (10*n)!*(6*n)!*n!/((7*n)!*(5*n)!*(3*n)!*(2*n)!).

Terms

    a(0) =1a(1) =360a(2) =426360a(3) =583731720a(4) =848084358264

External references