49604domain: NAppears in sequencesExpansion of a cusp form of weight 8 for Gamma_1(6).at n=25A006354Number of n X 3 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1's.at n=9A295208Number of bicolored graphs on n unlabeled nodes such that every white node is adjacent to a black node.at n=7A339836