G.f. satisfies: A(x) = Sum_{n>=0} x^n*g_n(x)^n where g_n(x) = A(x) - x^n*g_n(x)^n for n>=0.
A187010
G.f. satisfies: A(x) = Sum_{n>=0} x^n*g_n(x)^n where g_n(x) = A(x) - x^n*g_n(x)^n for n>=0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =8a(5) =20a(6) =65a(7) =189a(8) =545a(9) =1672a(10) =5234a(11) =16483a(12) =52508a(13) =168948a(14) =547031a(15) =1782892a(16) =5851234a(17) =19308826a(18) =64012154a(19) =213130527a(20) =712361672a(21) =2389177656a(22) =8038552120a(23) =27125159211a(24) =91774118484a(25) =311265968741
External references
- oeis: A187010