A222633 Number of nX6 0..1 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order

10, 49, 388, 3309, 31574, 314146, 3329090, 35575297, 385850578, 4227440605, 46625988715, 516571626268, 5743453991209, 64050469754900, 716052250851400, 8021899220823729, 90034317358965058, 1012158531157820251

Offset

1,1

Comments

Column 6 of A222635

Links

R. H. Hardin, Table of n, a(n) for n = 1..71

Example

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

Crossrefs

Sequence in context: A051947 A274561 A253221 * A061861 A243226 A283237

Adjacent sequences: A222630 A222631 A222632 * A222634 A222635 A222636

Keyword

nonn

Author

R. H. Hardin Feb 26 2013

Status

approved