G.f. A(x) satisfies: A(x) = (1 - x*A(x)) * Sum_{n>=0} x^n / (1 - x*A(x)^(2*n+1)).
A340893
G.f. A(x) satisfies: A(x) = (1 - x*A(x)) * Sum_{n>=0} x^n / (1 - x*A(x)^(2*n+1)).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =12a(5) =51a(6) =229a(7) =1079a(8) =5288a(9) =26768a(10) =139255a(11) =741804a(12) =4035428a(13) =22374787a(14) =126262588a(15) =724423620a(16) =4222889705a(17) =24999907277a(18) =150274982778a(19) =917156371139
External references
- oeis: A340893