Expansion of g.f. A(x) satisfying A(x) = 1 + x*(A(x)^2 + A(-x)^2)/2 + x*(A(x)^3 - A(-x)^3)/2.
A368627
Expansion of g.f. A(x) satisfying A(x) = 1 + x*(A(x)^2 + A(-x)^2)/2 + x*(A(x)^3 - A(-x)^3)/2.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =7a(4) =40a(5) =103a(6) =723a(7) =1941a(8) =15060a(9) =41382a(10) =340657a(11) =950061a(12) =8132676a(13) =22916139a(14) =201684153a(15) =572618987a(16) =5145063940a(17) =14692661910a(18) =134152006842a(19) =384852888898
External references
- oeis: A368627