Liu J-C. A Combinatorial Proof of a Cubic Congruence for the \(q\)-Secant Inversion Enumerator. Electron. J. Combin. [Internet]. 2026Jul.17 [cited 2026Jul.19];33(3):#P3.10. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v33i3p10