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A269206 Number of 6Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three no more than once. 1
4096, 1090740, 142233732, 19558138380, 2532677348772, 320994710282892, 39825831571425924, 4865841496644992100, 587133256785089633172, 70137053123425124078748, 8308848756491598850682388 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A269201.

LINKS

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

EXAMPLE

Some solutions for n=2

..0..1. .0..0. .0..1. .0..0. .0..0. .0..1. .0..1. .0..0. .0..1. .0..0

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

..1..0. .0..1. .3..1. .0..0. .3..2. .2..0. .3..1. .3..1. .2..0. .2..0

..2..0. .0..2. .1..2. .1..0. .2..0. .0..0. .3..2. .3..3. .3..2. .2..3

..1..3. .0..2. .2..3. .2..1. .2..3. .2..1. .2..0. .3..3. .2..2. .3..2

..0..0. .2..3. .2..3. .3..2. .3..2. .1..0. .0..0. .2..3. .0..2. .0..3

CROSSREFS

Cf. A269201.

Sequence in context: A016962 A224395 A224028 * A183816 A224285 A224208

Adjacent sequences:  A269203 A269204 A269205 * A269207 A269208 A269209

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 20 2016

STATUS

approved

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Last modified July 20 14:01 EDT 2019. Contains 325181 sequences. (Running on oeis4.)