Coefficients of g.f. for the class of multiply-rooted C-trees.
A280768
Coefficients of g.f. for the class of multiply-rooted C-trees.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =23a(4) =97a(5) =446a(6) =2140a(7) =10662a(8) =54482
External references
- oeis: A280768