Antal Fekete, Gary Martin. Squared Series Yielding Integers: 10791. The American Mathematical Monthly, 108(2):177-178, 2001. [doi]
@article{FeketeM01-0, title = {Squared Series Yielding Integers: 10791}, author = {Antal Fekete and Gary Martin}, year = {2001}, url = {http://www.jstor.org/stable/2695545}, researchr = {https://researchr.org/publication/FeketeM01-0}, cites = {0}, citedby = {0}, journal = {The American Mathematical Monthly}, volume = {108}, number = {2}, pages = {177-178}, }