Largest polyomino with no four cells equally spaced on a straight line
arXiv:2004.12801
Abstract
The maximal number of cells in a polyomino with no four cells equally spaced on a straight line is determined to be 142. This is based on several partial results, each of which can be verified with computer assistance.
arXiv comment6 pages, 3 figures. Another typo was detected in Lemma 2 (and a comment afterwards referring to it) and corrected in version 3