Goy, T., and M. Shattuck. “Hessenberg-Toeplitz Matrix Determinants With Schröder and Fine Number Entries”. Carpathian Mathematical Publications 15, no. 2 (November 20, 2023): 420–436. Accessed November 22, 2024. https://ktipe.pnu.edu.ua/index.php/cmp/article/view/6692.