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A266017 Number of 7Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors equal to itself. 1
1, 1, 102, 44, 483, 1561, 10708, 62684, 145344, 253394, 1663567, 7253158, 20436396, 81005594, 346203546, 1298613540, 4729960051, 18275111422, 70440272974, 267189128408, 1008549687107, 3827029447559, 14623357809480, 55686510400311 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Row 7 of A266012.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

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

CROSSREFS

Cf. A266012.

Sequence in context: A325775 A204749 A244949 * A144469 A009101 A031962

Adjacent sequences:  A266014 A266015 A266016 * A266018 A266019 A266020

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2015

STATUS

approved

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Last modified May 17 14:19 EDT 2022. Contains 353746 sequences. (Running on oeis4.)