E.g.f. satisfies A(x) = (1 + x)^3 * exp(x * A(x)).
A377828
E.g.f. satisfies A(x) = (1 + x)^3 * exp(x * A(x)).
Terms
- a(0) =1a(1) =4a(2) =21a(3) =193a(4) =2669a(5) =48711a(6) =1113325a(7) =30615019a(8) =984983193a(9) =36319515355
External references
- oeis: A377828