G.f. A(x) satisfies: A(x)^2 = A( x^2 + 2*A(x)^3 ), with A(0)=0, A'(0)=1.
A271959
G.f. A(x) satisfies: A(x)^2 = A( x^2 + 2*A(x)^3 ), with A(0)=0, A'(0)=1.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =46a(5) =206a(6) =968a(7) =4706a(8) =23475a(9) =119473a(10) =617911a(11) =3238299a(12) =17159235a(13) =91778276a(14) =494844531a(15) =2686731634a(16) =14676812392a(17) =80608719674a(18) =444853616294
External references
- oeis: A271959