CLAPPERTON, JAMES A.; LARCOMBE, PETER J.; FENNESSEY, ERIC J. On iterated generating functions for arbitrary finite sequences. Utilitas Mathematica , [S. l.], v. 76, 2008. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/545. Acesso em: 8 may. 2026.