99621
domain: N
Appears in sequences
- Number of tilings of a 3 X n rectangle using dominoes and right trominoes.at n=10A165716
- Number of tilings of a 10 X n rectangle using dominoes and right trominoes.at n=3A219993
- Number of inequivalent ways of placing 2 nonattacking rooks on n X n board up to rotations and reflections of the board.at n=35A307304