G.f.: A(x) = exp( Sum_{n>=1} (Sum_{k=0..n} C(n,k)^4*A(x)^k) * x^n/n ).
A192204
G.f.: A(x) = exp( Sum_{n>=1} (Sum_{k=0..n} C(n,k)^4*A(x)^k) * x^n/n ).
Terms
- a(0) =1a(1) =2a(2) =13a(3) =109a(4) =1099a(5) =12283a(6) =147620a(7) =1869346a(8) =24633344a(9) =334916467a(10) =4669887745a(11) =66481991644a(12) =963096090267
External references
- oeis: A192204