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A295528 Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s. 1
12, 280, 4080, 64189, 1012315, 16031147, 253594307, 4003959566, 63279327977, 1000139739583, 15804787030137, 249762291976009, 3947048440634688, 62375786616766976, 985731805754249812, 15577646241372914358 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A295531.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .1..0..0..0..0
..0..1..0..1..1. .0..1..0..0..0. .0..0..1..1..0. .1..0..0..0..0
..1..1..1..0..1. .0..1..1..1..0. .1..0..0..0..0. .0..0..1..0..0
..0..1..0..1..1. .1..0..0..0..0. .1..0..0..1..1. .1..1..1..0..0
..0..0..0..1..0. .1..1..1..1..1. .1..1..0..0..0. .1..0..0..0..0
CROSSREFS
Cf. A295531.
Sequence in context: A239780 A351765 A295037 * A166337 A183767 A009604
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 23 2017
STATUS
approved

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Last modified February 25 19:44 EST 2024. Contains 370332 sequences. (Running on oeis4.)