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A297992 Number of nX7 0..1 arrays with every element equal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero. 1
8, 1933, 3820, 14888, 62390, 290466, 1276012, 5745438, 26249179, 117931466, 529767543, 2397639048, 10849215458, 49036526523, 221822852403, 1003695687810, 4540550678347, 20545128422585, 92986082536821, 420869471627171 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A297993.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A297993.

Sequence in context: A002672 A027515 A297822 * A298845 A298652 A299606

Adjacent sequences:  A297989 A297990 A297991 * A297993 A297994 A297995

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 10 2018

STATUS

approved

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Last modified July 3 11:18 EDT 2022. Contains 355050 sequences. (Running on oeis4.)