G.f. A(x) satisfies A(x) = 1 + Sum_{n>=1} A(x)^n * 2*x^(2*n-1)/(1 - 2*x^(2*n-1)).
A192402
G.f. A(x) satisfies A(x) = 1 + Sum_{n>=1} A(x)^n * 2*x^(2*n-1)/(1 - 2*x^(2*n-1)).
Terms
- a(0) =1a(1) =2a(2) =8a(3) =34a(4) =140a(5) =586a(6) =2476a(7) =10522a(8) =45048a(9) =194210a(10) =842672a(11) =3678946a(12) =16155140a(13) =71328210a(14) =316536532a(15) =1411398138a(16) =6321140080a(17) =28426660498a(18) =128325523272a(19) =581349815466
External references
- oeis: A192402