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A269142 Number of nX7 0..3 arrays with some element plus some horizontally, antidiagonally or vertically adjacent neighbor totalling three no more than once. 1
8748, 2727564, 732561916, 186315931804, 45920055321732, 11067174233536260, 2621894498331024092, 612729907775635265268, 141617828339474744759764, 32434464000726413874379876, 7371987566769862222037312812 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A269143.

LINKS

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

EXAMPLE

Some solutions for n=1

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

CROSSREFS

Cf. A269143.

Sequence in context: A203377 A183361 A269193 * A269200 A269108 A269288

Adjacent sequences:  A269139 A269140 A269141 * A269143 A269144 A269145

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 20 2016

STATUS

approved

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Last modified June 18 18:08 EDT 2021. Contains 345120 sequences. (Running on oeis4.)