Panario, Daniel, Murat Sahin, and Qiang Wang. “Generalized Alcuin’s Sequence”. The Electronic Journal of Combinatorics 19, no. 4 (December 31, 2012): P55. Accessed March 17, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v19i4p55.