G.f. A(x) satisfies: 1 = Sum_{n>=0} ((1+x)^(4*n) - A(x))^n.
A321604
G.f. A(x) satisfies: 1 = Sum_{n>=0} ((1+x)^(4*n) - A(x))^n.
Terms
- a(0) =1a(1) =4a(2) =22a(3) =564a(4) =25157a(5) =1499576a(6) =109904860a(7) =9480509576a(8) =937113401201
External references
- oeis: A321604