Expansion of 1/(g * (2 - g^2)), where g = 1+x*g^2 is the g.f. of A000108.

A391516

Expansion of 1/(g * (2 - g^2)), where g = 1+x*g^2 is the g.f. of A000108.

Terms

    a(0) =1a(1) =1a(2) =6a(3) =29a(4) =139a(5) =667a(6) =3206a(7) =15430a(8) =74331a(9) =358307a(10) =1727978a(11) =8336066a(12) =40223910a(13) =194124270a(14) =936975404a(15) =4522883180a(16) =21833899731a(17) =105406817699a(18) =508887972290

External references