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A293094 Number of n X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1. 0
0, 0, 48, 8088, 3125547, 5589631828, 38469698642410, 1110306381675662688 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Diagonal of A293100.
LINKS
EXAMPLE
Some solutions for n=4
..1..1..1..0. .0..0..0..0. .0..0..0..0. .1..1..0..1. .1..1..0..1
..0..1..0..1. .1..1..1..0. .0..0..0..1. .0..0..0..0. .0..0..1..0
..0..0..0..0. .1..0..0..0. .1..0..0..1. .0..1..1..0. .1..0..0..0
..0..0..1..1. .0..1..1..1. .1..0..1..0. .1..0..1..0. .0..0..0..0
CROSSREFS
Cf. A293100.
Sequence in context: A130417 A299943 A226257 * A233199 A232160 A260212
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 30 2017
STATUS
approved

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Last modified February 26 10:24 EST 2024. Contains 370346 sequences. (Running on oeis4.)