a(n) = Pochhammer(n+1, n)/Clausen(n, 1) = A001813(n) / A160014(n, 1).

A268432

a(n) = Pochhammer(n+1, n)/Clausen(n, 1) = A001813(n) / A160014(n, 1).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =60a(4) =56a(5) =15120a(6) =15840a(7) =8648640a(8) =17297280a(9) =8821612800a(10) =10158220800a(12) =474467051520

External references