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A270117 Number of nX7 0..7 arrays with some element plus some horizontally or vertically adjacent neighbor totalling seven exactly once. 1
806736, 932758314432, 587581295287557312, 310047482243688075320784, 150106896816846862603331679744, 69055044905731486960323236937432480, 30710864722727618437291310619830386096704 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A270118.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..15

EXAMPLE

Some solutions for n=1

..4..2..3..1..6..3..7. .2..0..4..1..2..5..1. .4..2..4..3..7..6..7

CROSSREFS

Cf. A270118.

Sequence in context: A214148 A272692 A186585 * A178290 A083617 A343082

Adjacent sequences:  A270114 A270115 A270116 * A270118 A270119 A270120

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 11 2016

STATUS

approved

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Last modified April 17 19:51 EDT 2021. Contains 343070 sequences. (Running on oeis4.)