Number of linear forests with n rooted trees and 2*n-1 nodes.

A339440

Number of linear forests with n rooted trees and 2*n-1 nodes.

Terms

    a(0) =0a(1) =1a(2) =2a(3) =9a(4) =44a(5) =230a(6) =1236a(7) =6790a(8) =37832a(9) =213057a(10) =1209660a(11) =6912367a(12) =39705516a(13) =229055918a(14) =1326168018a(15) =7701734250a(16) =44846271632a(17) =261735599172

External references