The half-perimeter generating function of gated and wicketed Ferrers diagrams. Ayyer, Arvind — 2007 Journal of Integer Sequences [electronic only]
Towards a human proof of Gessel's conjecture. Ayyer, Arvind — 2009 Journal of Integer Sequences [electronic only]
The number of [old-time] basketball games with final score n : n where the home team was never losing but also never ahead by more than w points. Ayyer, Arvind; Zeilberger, Doron — 2007 The Electronic Journal of Combinatorics [electronic only]