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A297631 Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 3 neighboring 1's. 0
2, 8, 113, 2370, 201152, 36084211, 21730243952, 34434651958956, 160513915016803898, 2122969181828009056551 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A297637.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..1. .1..1..0..0. .0..0..1..0. .1..1..0..0. .0..0..0..0
..0..0..0..0. .0..1..1..1. .1..0..0..0. .1..1..0..1. .1..1..0..1
..1..1..0..0. .0..0..1..0. .1..0..1..0. .0..0..0..0. .1..1..0..0
..1..1..1..0. .1..0..1..0. .1..0..1..0. .1..0..0..0. .1..1..0..1
CROSSREFS
Cf. A297637.
Sequence in context: A012343 A012347 A263249 * A099292 A284967 A064111
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2018
STATUS
approved

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)