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A295600 Number of n X n 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2, 3 or 4 1's. 0
2, 8, 83, 2305, 201602, 59562253, 59768294027, 195983446202018, 2042645631368981289, 66953404656552750563696, 6880370009924341556569346403, 2214730128261217537587945918885974 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A295606.
LINKS
EXAMPLE
Some solutions for n=4
..1..1..0..0. .0..0..0..1. .1..1..1..0. .1..0..0..0. .0..0..1..1
..1..1..0..1. .0..0..1..0. .1..1..1..1. .0..0..0..1. .1..1..1..1
..0..0..1..0. .0..0..0..0. .0..0..1..1. .0..0..0..0. .1..1..0..0
..0..1..0..0. .0..0..1..0. .1..0..1..1. .0..0..0..0. .0..0..1..0
CROSSREFS
Cf. A295606.
Sequence in context: A297566 A013175 A120820 * A336252 A276488 A295764
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 24 2017
STATUS
approved

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Last modified April 15 18:10 EDT 2024. Contains 371694 sequences. (Running on oeis4.)