... Essays in Honor of Gian-Carlo Rota, B. E. Sagan, R. P. Stanley, Progress in Math., vol. 161,Birkh¨auser[6] C. Krattenthaler, Generating functions for plane partitions of a given shape, Manuscripta ... matchings factorizationtheorem from [1].the electronic journal of combinatorics 6 (1999), #R30 19[5] C. Krattenthaler, An alternative evaluation of the Andrews–Burge determinant, in: Mathemati-cal ... SYMMETRY AXISTHERESIA EISENK¨OLBLInstitut f¨ur Mathematik der Universit¨at Wien,Strudlhofgasse 4, A- 1090 Wien, Austria.E-mail: Theresia.Eisenkoelbl@univie.ac.atSubmitted: May 16, 1999; Accepted:...