A223130 Number of 5Xn 0..2 arrays with no more than floor(5Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order

41, 5376, 622568, 112106293, 12483535858, 2373042420012, 266413907612919, 52026602889237335, 5888785066309216678, 1169006907613853988993, 133131028198472766703859, 26716908349922784017780109

Offset

1,1

Comments

Row 5 of A223126

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

Some solutions for n=3
..0..0..1....0..0..0....0..0..1....0..0..1....0..0..1....0..0..1....0..0..1
..1..0..1....1..1..2....1..2..1....1..2..2....1..0..1....0..0..1....1..0..2
..1..2..1....1..1..0....1..2..2....0..2..1....0..2..1....1..0..1....2..1..0
..1..2..1....2..1..2....0..1..0....0..0..1....1..0..1....2..0..1....0..0..1
..2..0..2....0..1..2....2..1..1....1..0..2....0..2..1....0..2..1....0..2..1

Crossrefs

Sequence in context: A233079 A159992 A101830 * A091758 A208255 A221325

Adjacent sequences: A223127 A223128 A223129 * A223131 A223132 A223133

Keyword

nonn

Author

R. H. Hardin Mar 15 2013

Status

approved