Barequet, Gill, and Gil Ben-Shachar. “Minimum-Perimeter Lattice Animals and the Constant-Isomer Conjecture”. The Electronic Journal of Combinatorics 29, no. 3 (August 26, 2022): #P3.45. Accessed May 15, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v29i3p45.