E.g.f.: Product_{m>0} 1/(1 - x^m + x^(2*m)/2!).
A293302
E.g.f.: Product_{m>0} 1/(1 - x^m + x^(2*m)/2!).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =12a(4) =66a(5) =450a(6) =3510a(7) =32760a(8) =335160a(9) =3832920a(10) =48648600a(11) =673596000a(12) =9961736400a(13) =161026866000
External references
- oeis: A293302