Hook length formulas for trees by Han's expansion. Chen, William Y.C., Gao, Oliver X.Q., Guo, Peter L. (2009) The Electronic Journal of Combinatorics [electronic only]
Hooks and powers of parts in partitions. Bacher, Roland, Manivel, Laurent (2002) Séminaire Lotharingien de Combinatoire [electronic only]
How many square occurrences must a binary sequence contain? Kucherov, Gregory, Ochem, Pascal, Rao, Michaël (2003) The Electronic Journal of Combinatorics [electronic only]
Hybrid proofs of the q -binomial theorem and other identities. Eichhorn, Dennis, McLaughlin, James, Sills, Andrew V. (2011) The Electronic Journal of Combinatorics [electronic only]
HYP and HYPQ. Mathematica packages for the manipulation of binomial sums and hypergeometric series respectively q -binomial sums and basic hypergeometric series. Krattenthaler, C. (1993) Séminaire Lotharingien de Combinatoire [electronic only]
HYPERG: a Maple package for manipulating hypergeometric series. Gauthier, Bruno (1999) Séminaire Lotharingien de Combinatoire [electronic only]
Hypergeometric series acceleration via the WZ method. Amdeberhan, Tewodros, Zeilberger, Doron (1997) The Electronic Journal of Combinatorics [electronic only]