a(n) = n!*ClausenNumber(n, 1)/(n + 1), Clausen numbers defined in A160014.
A325871
a(n) = n!*ClausenNumber(n, 1)/(n + 1), Clausen numbers defined in A160014.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =3a(4) =144a(5) =40a(6) =4320a(7) =1260a(8) =134400a(9) =72576a(10) =21772800a(11) =6652800a(12) =100590336000a(13) =889574400a(14) =34871316480a(15) =163459296000
External references
- oeis: A325871