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A304847 Number of nX7 0..1 arrays with every element unequal to 0, 1, 2, 4 or 7 king-move adjacent elements, with upper left element zero. 1
64, 432, 1009, 4816, 45988, 294924, 1500288, 10862979, 74522808, 445537503, 2890316757, 19411788281, 123321843070, 789295662382, 5175412707808, 33457355130603, 215064539707167, 1395577141904583, 9044156823266796 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A304848.

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

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

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

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

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

CROSSREFS

Cf. A304848.

Sequence in context: A305244 A304478 A316303 * A316544 A306059 A188785

Adjacent sequences:  A304844 A304845 A304846 * A304848 A304849 A304850

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 19 2018

STATUS

approved

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Last modified September 24 22:46 EDT 2021. Contains 347651 sequences. (Running on oeis4.)