G.f. satisfies: A(x) = 1 + Sum_{n>=1} q^(2n-1)/(1 - q^(2n-1)) where q = x*A(x).
A190790
G.f. satisfies: A(x) = 1 + Sum_{n>=1} q^(2n-1)/(1 - q^(2n-1)) where q = x*A(x).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =18a(5) =58a(6) =198a(7) =696a(8) =2506a(9) =9205a(10) =34344a(11) =129792a(12) =495834a(13) =1911640a(14) =7428444a(15) =29064650a(16) =114404410a(17) =452719183a(18) =1799994588a(19) =7187148262a(20) =28807364008a(21) =115865980972a(22) =467497031164
External references
- oeis: A190790