OFFSET
1,1
COMMENTS
A marked rooted tree is a rooted tree where each node and edge is marked as + or -.
REFERENCES
F. Bergeron, G. Labelle and P. Leroux, Combinatorial Species and Tree-Like Structures, Cambridge, 1998, p. 293 (4.1.60).
LINKS
L. Foissy, Algebraic structures on typed decorated rooted trees, arXiv:1811.07572 (2018)
CROSSREFS
KEYWORD
nonn
AUTHOR
Christian G. Bower, Jan 21 2008
STATUS
approved