E.g.f.: exp(1/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)) - 1).
A294215
E.g.f.: exp(1/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)) - 1).
Terms
- a(0) =1a(1) =1a(2) =5a(3) =31a(4) =265a(5) =2501a(6) =29461a(7) =383755a(8) =5721521a(9) =93393865a(10) =1683745381a(11) =32835673751a(12) =693498302905
External references
- oeis: A294215