A222852 Number of nX5 0..2 arrays with no more than floor(nX5/2) elements equal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order

24, 2894, 292257, 54792022, 5837726398, 1141704766670, 124856316713527, 24927956590153554, 2768406099662459892, 559412974007994644997, 62753632268850466297399, 12780528966938546661644437

Offset

1,1

Comments

Column 5 of A222853

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

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

Crossrefs

Sequence in context: A060902 A090444 A205795 * A189246 A001512 A217574

Adjacent sequences: A222849 A222850 A222851 * A222853 A222854 A222855

Keyword

nonn

Author

R. H. Hardin Mar 07 2013

Status

approved