Expansion of g^3/(1 + x^2*g^4), where g = 1+x*g^3 is the g.f. of A001764.

A391307

Expansion of g^3/(1 + x^2*g^4), where g = 1+x*g^3 is the g.f. of A001764.

Terms

    a(0) =1a(1) =3a(2) =11a(3) =48a(4) =232a(5) =1194a(6) =6411a(7) =35496a(8) =201173a(9) =1161289a(10) =6803972a(11) =40356280a(12) =241842772a(13) =1462062606a(14) =8906041147a(15) =54609234320a(16) =336793683739

External references