Enumerating Solutions to Grid-Based Puzzles with a Fixed Number of Rows. - George Spahn (Math. Comput. Sci., 2022)

Counting Baxter Matrices. - George Spahn (Electron. J. Comb., 2023)

Rectangular Hardinian Arrays. - Robert Dougherty-Bliss; George Spahn (ACM Commun. Comput. Algebra, 2024)

Enumerating seating arrangements that obey social distancing. - George Spahn; Doron Zeilberger (J. Symb. Comput., 2025)