708750000000domain: NAppears in sequencesDuplicate of A052562.at n=9A047054a(n) = (5*n+10)(!^5)/10(!^5), related to A052562 ((5*n)(!^5) quintic, or 5-factorials).at n=8A051691a(n) = 5^n * n!.at n=9A052562