440880

Appears in sequences

• Number of 4Xn 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=14A281403
• a(n) = sum of the origin-to-boundary graph-distances of all partitions of n.at n=44A368986