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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 1
21, 882, 7473, 112827, 1349732, 17672899, 223336353, 2861990416, 36475373351, 465876675157, 5945303162296, 75896550206911, 968753829090555, 12365941291118010, 157845481105247677, 2014840165844453827 (list; graph; refs; listen; history; text; internal format)
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

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Last modified October 27 20:04 EDT 2021. Contains 348289 sequences. (Running on oeis4.)