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A304958 Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero. 1
8, 928, 3917, 35441, 334906, 3174054, 30361694, 294236689, 2849022835, 27577576571, 267524005831, 2595967334283, 25167006078980, 244136931469260, 2368604689022724, 22973903107467940, 222853263910436970 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A304959.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304959.

Sequence in context: A348795 A304018 A305366 * A316640 A304696 A316447

Adjacent sequences:  A304955 A304956 A304957 * A304959 A304960 A304961

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 22 2018

STATUS

approved

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Last modified January 16 22:12 EST 2022. Contains 350376 sequences. (Running on oeis4.)