Peter L. Montgomery, Sangil Nahm, Samuel S. Wagstaff Jr.. The period of the Bell numbers modulo a prime. Math. Comput., 79(271):1793-1800, 2010. [doi]
@article{MontgomeryNW10,
title = {The period of the Bell numbers modulo a prime},
author = {Peter L. Montgomery and Sangil Nahm and Samuel S. Wagstaff Jr.},
year = {2010},
doi = {10.1090/S0025-5718-10-02340-9},
url = {http://dx.doi.org/10.1090/S0025-5718-10-02340-9},
researchr = {https://researchr.org/publication/MontgomeryNW10},
cites = {0},
citedby = {0},
journal = {Math. Comput.},
volume = {79},
number = {271},
pages = {1793-1800},
}