We give a combinatorial proof of an identity originally proved by G. E. Andrews. The identity simplifies a mock theta function first discovered by Rogers.
Evans, Katie and Wastvedt, Trygve
"A Combinatorial Proof of an Identity of Andrews,"
Rose-Hulman Undergraduate Mathematics Journal: Vol. 9:
2, Article 9.
Available at: https://scholar.rose-hulman.edu/rhumj/vol9/iss2/9