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A300920 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
1, 40, 290, 4066, 48588, 640673, 8265835, 108469760, 1419225976, 18612718736, 243965442778, 3199006474569, 41943406467118, 549970038257539, 7211211285768759, 94554378260472599, 1239807002239604003 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 5 of A300923.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..0. .0..1..0..0..1. .0..1..0..0..0. .0..1..0..0..0
..0..0..0..0..0. .1..1..0..1..1. .1..1..0..0..0. .1..1..0..0..1
..0..1..1..0..0. .0..1..0..0..1. .1..1..1..0..0. .1..0..0..0..0
..1..1..1..1..1. .1..1..0..1..1. .1..0..1..0..0. .0..0..1..1..0
..1..0..1..1..0. .0..1..1..1..1. .1..1..1..0..1. .0..1..1..0..0
CROSSREFS
Cf. A300923.
Sequence in context: A117216 A035099 A065255 * A061993 A087954 A160328
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 15 2018
STATUS
approved

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Last modified April 21 03:36 EDT 2024. Contains 371850 sequences. (Running on oeis4.)