Number of nodes of odd outdegree in all ordered rooted (planar) trees with n edges.

A014300

Number of nodes of odd outdegree in all ordered rooted (planar) trees with n edges.

Terms

    a(0) =1a(1) =2a(2) =7a(3) =24a(4) =86a(5) =314a(6) =1163a(7) =4352a(8) =16414a(9) =62292a(10) =237590a(11) =909960a(12) =3497248a(13) =13480826a(14) =52097267a(15) =201780224a(16) =783051638a(17) =3044061116a(18) =11851853042a(19) =46208337584a(20) =180383564228a(21) =704961896036

External references