G.f. satisfies: A(x) = Product_{n>=1} (1 + x^n*A(x)^(1/2))^2/(1 - x^n*A(x)^(1/2))^2.
A192619
G.f. satisfies: A(x) = Product_{n>=1} (1 + x^n*A(x)^(1/2))^2/(1 - x^n*A(x)^(1/2))^2.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =104a(4) =556a(5) =3048a(6) =17064a(7) =97216a(8) =562036a(9) =3289836a(10) =19461448a(11) =116178600a(12) =699045176a(13) =4235292680a(14) =25816944176a(15) =158223753376a(16) =974389668364
External references
- oeis: A192619