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A223110 Number of 7Xn 0..2 arrays with exactly floor(7Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 0
0, 111104, 137988216, 183046326118, 158311829556848, 213925430588811826, 178267875091681095647, 246859798712745076757039, 203854469855977979939565927 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A223104

LINKS

Table of n, a(n) for n=1..9.

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..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

..1..2..0....1..1..2....0..1..0....1..0..1....1..2..0....1..2..0....1..0..1

..0..2..1....2..0..2....2..1..2....1..1..0....0..2..1....1..2..1....0..2..1

..1..0..1....0..1..0....2..0..2....0..2..1....1..0..1....1..2..2....1..2..1

..1..0..1....0..1..0....0..0..2....0..2..1....2..1..0....1..0..2....1..2..0

..0..1..2....2..1..2....1..0..2....0..2..1....2..0..2....1..2..1....1..0..1

CROSSREFS

Sequence in context: A103874 A195223 A205243 * A094325 A171725 A135403

Adjacent sequences:  A223107 A223108 A223109 * A223111 A223112 A223113

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 14 2013

STATUS

approved

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Last modified June 18 18:17 EDT 2021. Contains 345120 sequences. (Running on oeis4.)