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

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