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A300543 Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
3, 129, 2879, 61561, 1338834, 29114990, 632777378, 13752553340, 298894998879, 6496115080739, 141185007792788, 3068481262669872, 66689639658671547, 1449416716033629216, 31501277073963713498, 684641239698193508103 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A300546.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..1..0..1..1..0. .0..0..0..1..1. .0..0..1..1..1. .0..1..1..1..0
..1..0..0..0..1. .1..1..0..0..0. .0..1..0..1..1. .0..0..0..1..0
..0..0..0..1..1. .1..0..0..1..1. .0..0..0..1..0. .1..1..1..1..1
..1..1..0..0..0. .1..1..1..0..0. .1..1..0..0..0. .0..0..1..0..0
CROSSREFS
Cf. A300546.
Sequence in context: A264582 A108713 A319222 * A300970 A300927 A123047
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 08 2018
STATUS
approved

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Last modified June 21 13:19 EDT 2024. Contains 373544 sequences. (Running on oeis4.)