A223124 Number of nX6 0..2 arrays with no more than floor(nX6/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order

72, 27803, 11814919, 5237368607, 2373042420012, 1092037282618789, 508211382191466327, 238520879437894414568, 112687149312234784385106, 53520374688794036580881324, 25529695524353330225340120939

Offset

1,1

Comments

Column 6 of A223126

Links

R. H. Hardin, Table of n, a(n) for n = 1..63

Example

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

Crossrefs

Sequence in context: A157459 A159393 A151627 * A062076 A284866 A153473

Adjacent sequences: A223121 A223122 A223123 * A223125 A223126 A223127

Keyword

nonn

Author

R. H. Hardin Mar 15 2013

Status

approved