G.f. B(x) satisfies: Sum_{n>=0} (-1)^n * n * (B(x) - (-1)^n*B(-x))^n = 0.
A318641
G.f. B(x) satisfies: Sum_{n>=0} (-1)^n * n * (B(x) - (-1)^n*B(-x))^n = 0.
Terms
- a(0) =1a(1) =4a(2) =16a(3) =160a(4) =1408a(5) =13760a(6) =140288a(7) =1459200a(8) =15595520a(9) =168584192a(10) =1847791616a(11) =20524785664a(12) =230327189504
External references
- oeis: A318641