##### Ramanujan Journal,
Vol. 23, Nos. 1-3, December 2010, p. 107-126.

# Dominique Foata, Guo-Niu Han

#
THE DOUBLOON POLYNOMIAL TRIANGLE

**Abstract.**
The doubloon polynomials are generating functions for a
class of combinatorial objects called normalized doubloons by the
compressed major index. They provide a refinement of the
q-tangent numbers and also involve two major specializations:
the Poupard triangle and the Catalan triangle.

foata at math dot u-strasbg dot fr,
guoniu at math dot u-strasbg dot fr

The following version is available: