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A295373 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1's. 0
2, 8, 74, 1634, 85310, 10437240, 2995361770, 2013609204094, 3172028798241544, 11706071393300493820, 101212810609370065235246, 2050164710762566420019514822 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A295379.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0. .0..0..0..1..0. .0..0..0..0..0. .0..0..1..1..0
..0..0..0..1..0. .1..0..0..0..0. .0..0..1..0..1. .1..0..1..1..1
..0..0..1..0..0. .0..1..0..1..0. .0..1..0..1..0. .0..0..0..1..1
..0..0..0..0..0. .1..0..1..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..1..0..1. .0..0..0..1..0. .0..1..0..1..0. .0..0..1..0..0
CROSSREFS
Cf. A295379.
Sequence in context: A143760 A064605 A356108 * A356746 A132039 A204552
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 21 2017
STATUS
approved

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Last modified March 4 23:31 EST 2024. Contains 370537 sequences. (Running on oeis4.)