E.g.f.: Product_{m>0} (1 + x^(2*m-1) + x^(4*m-2)/2! + x^(6*m-3)/3!).
A293489
E.g.f.: Product_{m>0} (1 + x^(2*m-1) + x^(4*m-2)/2! + x^(6*m-3)/3!).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =7a(4) =24a(5) =180a(6) =1200a(7) =10080a(8) =97440a(9) =997920a(10) =12096000a(11) =149688000a(12) =2128896000a(13) =31135104000a(14) =515804889600
External references
- oeis: A293489