A238653 Number of (n+2)X(7+2) 0..1 arrays with no element equal to all horizontal neighbors or equal to all vertical neighbors, and new values 0..1 introduced in row major order

21, 882, 7473, 112827, 1349732, 17672899, 223336353, 2861990416, 36475373351, 465876675157, 5945303162296, 75896550206911, 968753829090555, 12365941291118010, 157845481105247677, 2014840165844453827

Offset

1,1

Comments

Column 7 of A238654

Links

R. H. Hardin, Table of n, a(n) for n = 1..195

Example

Some solutions for n=4
..0..1..1..0..0..1..0..1..0....0..1..0..0..1..0..0..1..0
..1..0..0..1..1..0..1..0..1....1..0..1..1..0..1..1..0..1
..1..0..0..1..0..0..1..1..0....0..1..0..0..1..1..0..1..0
..0..1..1..0..0..1..0..0..1....1..0..1..1..0..0..1..0..1
..0..1..1..0..1..0..0..1..0....1..0..0..1..0..0..1..1..0
..1..0..0..1..0..1..1..0..1....0..1..1..0..1..1..0..0..1

Crossrefs

Sequence in context: A296737 A202810 A204196 * A041843 A041840 A012793

Adjacent sequences: A238650 A238651 A238652 * A238654 A238655 A238656

Keyword

nonn

Author

R. H. Hardin, Mar 02 2014

Status

approved