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A317821 Number of nX6 0..1 arrays with every element unequal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
5, 511, 1113, 11768, 47374, 296968, 1458418, 8231398, 43470698, 234869539, 1268932863, 6796211640, 36769146540, 197424396019, 1064758694845, 5732008854125, 30865744562047, 166276190963313, 895264358908034 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A317823.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..0..1. .0..0..0..1..0..1. .0..0..0..1..1..0. .0..1..1..0..1..1
..1..0..0..0..1..1. .1..1..1..1..0..1. .1..0..0..0..0..1. .1..1..0..1..1..0
..1..0..0..1..1..0. .0..1..1..0..0..0. .1..0..0..0..1..0. .1..0..0..1..1..0
..0..0..0..1..1..0. .0..1..0..0..0..0. .0..1..1..1..1..0. .0..0..0..1..0..0
..1..1..0..0..1..0. .0..1..0..1..1..0. .1..1..0..0..1..0. .1..0..1..0..0..1
CROSSREFS
Cf. A317823.
Sequence in context: A228093 A068234 A012741 * A318428 A318096 A249805
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 07 2018
STATUS
approved

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Last modified March 3 08:25 EST 2024. Contains 370499 sequences. (Running on oeis4.)