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A297601 Number of n X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 3 neighboring 1's. 0
2, 11, 181, 6413, 654033, 167209522, 113592447685, 194907376248498, 879332745226144714, 10237211550601397234033 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A297607.
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..0. .1..0..0..0. .0..1..0..0. .0..1..0..1. .1..0..0..0
..0..0..0..1. .0..1..0..0. .0..0..0..0. .0..1..0..0. .1..0..0..0
..0..0..0..1. .0..1..0..0. .0..0..0..1. .1..1..0..0. .1..0..0..0
..0..1..0..1. .0..0..1..0. .0..1..0..1. .0..1..0..1. .0..0..1..0
CROSSREFS
Cf. A297607.
Sequence in context: A011839 A271507 A217391 * A089760 A288556 A353930
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2018
STATUS
approved

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Last modified May 19 11:03 EDT 2024. Contains 372683 sequences. (Running on oeis4.)