a(n) = (5*n+6)(!^5)/6, related to A008548 ((5*n+1)(!^5) quintic, or 5-factorials).

A051687

a(n) = (5*n+6)(!^5)/6, related to A008548 ((5*n+1)(!^5) quintic, or 5-factorials).

Terms

    a(0) =1a(1) =11a(2) =176a(3) =3696a(4) =96096a(5) =2978976a(6) =107243136a(7) =4396968576a(8) =202260554496

External references