81554

Appears in sequences

• Number of n X 3 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=15A281760
• Number of tilings of a 5 X n rectangle using n pentominoes of shapes U, Y, Z.at n=22A352421