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A320406 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
16, 95, 548, 3761, 27236, 191615, 1353623, 9623424, 68454701, 487378041, 3471554122, 24729497665, 176166804149, 1255112001383, 8941934679343, 63707927676802, 453894992622140, 3233839557918619, 23040000280256652 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A320409.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..1..1..0..1. .0..0..0..1..0. .0..0..0..1..0
..0..0..0..0..0. .1..1..1..1..0. .0..0..0..0..1. .1..0..0..0..1
..1..0..1..1..0. .1..1..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..1..0. .0..1..0..0..0. .0..1..0..1..0. .1..1..1..0..0
..0..1..0..0..0. .1..0..0..0..1. .0..1..1..1..0. .1..1..0..0..0
CROSSREFS
Cf. A320409.
Sequence in context: A066487 A318021 A333511 * A241936 A321338 A128702
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 12 2018
STATUS
approved

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Last modified February 21 16:55 EST 2024. Contains 370237 sequences. (Running on oeis4.)