G.f. satisfies A(x) = ( 1 + x * (A(x)^(1/2) / (1-x))^2 )^2.
A370479
G.f. satisfies A(x) = ( 1 + x * (A(x)^(1/2) / (1-x))^2 )^2.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =40a(4) =184a(5) =872a(6) =4232a(7) =20936a(8) =105208a(9) =535624a(10) =2757000a(11) =14324456a(12) =75028152a(13) =395750568a(14) =2100380424a(15) =11208429960a(16) =60103977976a(17) =323708642952
External references
- oeis: A370479