G.f. satisfies A(x) = 1/Product_{n>=1} (1 - x^n*A(x^n)^2).
A196192
G.f. satisfies A(x) = 1/Product_{n>=1} (1 - x^n*A(x^n)^2).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =16a(4) =77a(5) =389a(6) =2128a(7) =12019a(8) =70185a(9) =418788a(10) =2544938a(11) =15687842a(12) =97871618a(13) =616729500a(14) =3919686231a(15) =25096525793a(16) =161723865118
External references
- oeis: A196192