James Gary Propp, Tiberiu V. Trif. Deriving a Perfect Square: 10706. The American Mathematical Monthly, 107(9):866-867, 2000. [doi]
@article{ProppT00, title = {Deriving a Perfect Square: 10706}, author = {James Gary Propp and Tiberiu V. Trif}, year = {2000}, url = {http://www.jstor.org/stable/2695753}, researchr = {https://researchr.org/publication/ProppT00}, cites = {0}, citedby = {0}, journal = {The American Mathematical Monthly}, volume = {107}, number = {9}, pages = {866-867}, }