Stephan Ramon Garcia, Matthew A. Myers. Composites in the Ulam Spiral. The American Mathematical Monthly, 128(3):238, 2021. [doi]
@article{GarciaM21,
title = {Composites in the Ulam Spiral},
author = {Stephan Ramon Garcia and Matthew A. Myers},
year = {2021},
doi = {10.1080/00029890.2021.1858692},
url = {https://doi.org/10.1080/00029890.2021.1858692},
researchr = {https://researchr.org/publication/GarciaM21},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {128},
number = {3},
pages = {238},
}