A222702 Number of nX7 0..1 arrays with no more than floor(nX7/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..1 order

12, 236, 2609, 73901, 1025809, 32501123, 477839646, 15677424850, 236833178725, 7904715597566, 121438163564977, 4094640448127069, 63601112273659110, 2158997133088119204, 33792045749087345628, 1152566124703075253626

Offset

1,1

Comments

Column 7 of A222703

Links

R. H. Hardin, Table of n, a(n) for n = 1..24

Example

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

Crossrefs

Sequence in context: A303487 A280071 A279610 * A352700 A012351 A189883

Adjacent sequences: A222699 A222700 A222701 * A222703 A222704 A222705

Keyword

nonn

Author

R. H. Hardin Feb 28 2013

Status

approved