On some new observations on Kurepa’s left factorial. Mathematical Analysis and its Contemporary Applications, [S. l.], v. 4, n. 3, 2022. DOI: 10.30495/maca.2022.1950392.1047. Disponível em: https://oiccpress.com/maca/article/view/19418. Acesso em: 10 jul. 2026.