Precise Value of the Invariant $s_{d\mathbb{N}} (D_{2n})$ over the Dihedral Group $D_{2n}$
ZHAO Kevin, LIANG Wanjun, CHEN Lifang
Mathematical Theory and Applications . 2025, (3): 81 -95 .  DOI: 10.3969/j.issn.1006-8074.2025.03.004