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A298500 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4 or 7 king-move adjacent elements, with upper left element zero. 1
21, 203, 20, 467, 2353, 1602, 24272, 118439, 372820, 3857775, 22638601, 135423787, 1109353612, 7371311350, 51327931415, 387280908485, 2703270862580, 19437454766314, 142684818408113, 1015214265364529, 7343824393757918 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A298501.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..145

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Cf. A298501.

Sequence in context: A125384 A126542 A297906 * A298319 A299392 A299193

Adjacent sequences:  A298497 A298498 A298499 * A298501 A298502 A298503

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 20 2018

STATUS

approved

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Last modified January 23 20:39 EST 2021. Contains 340386 sequences. (Running on oeis4.)