A222570 Number of nX5 0..2 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
5, 25, 134, 3516, 30766, 881766, 9004283, 287554360, 2996904309, 97314847813, 1017926334514, 33241999169841, 348578922829704, 11400450205720554, 119870153063857315, 3922257706849216462, 41351192613216141769
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..0..0..0....0..0..1..0..0....0..0..0..0..1....0..1..2..2..2 ..0..0..0..1..0....0..0..0..0..0....0..0..0..0..0....0..2..2..2..2 ..0..0..0..0..0....0..0..0..0..2....2..0..0..0..0....2..2..2..2..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..53
Comments