a(n) = numerator(R(n,3)), where R(n,d) = (Product_{j prime to d} Pochhammer(j/d, n)) / n!.

A273194

a(n) = numerator(R(n,3)), where R(n,d) = (Product_{j prime to d} Pochhammer(j/d, n)) / n!.

Terms

    a(0) =1a(1) =2a(2) =20a(3) =1120a(4) =30800a(5) =1121120a(6) =152472320a(7) =8277068800a(8) =523524601600

External references