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A304543 Number of nX7 0..1 arrays with every element unequal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero. 1
21, 127, 129, 808, 2792, 9840, 53098, 285622, 1415123, 8070788, 46626298, 264656323, 1540155897, 9031209225, 52836601996, 310654081048, 1830571135620, 10790622849760, 63681959164268, 376067319191032, 2221525051427895 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A304544.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304544.

Sequence in context: A304854 A305251 A316551 * A306128 A316310 A317265

Adjacent sequences:  A304540 A304541 A304542 * A304544 A304545 A304546

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 14 2018

STATUS

approved

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Last modified June 30 03:34 EDT 2022. Contains 354913 sequences. (Running on oeis4.)