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A282962 Number of n X n 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements. 0
0, 0, 38, 3635, 577003, 206993155, 163712015523, 296587454834249, 1244478900421397928, 12226172933184772433991 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Diagonal of A282969.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..1. .0..1..1..1. .0..0..0..1. .1..0..1..0. .0..0..0..0
..0..0..1..0. .0..0..0..1. .1..1..1..0. .1..0..0..0. .1..0..0..0
..0..0..1..0. .0..0..0..0. .0..0..1..0. .1..0..0..0. .1..0..0..0
..0..1..0..0. .0..0..1..1. .0..0..0..1. .1..0..0..1. .1..1..0..1
CROSSREFS
Cf. A282969.
Sequence in context: A319519 A221111 A322331 * A229523 A173133 A221354
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 25 2017
STATUS
approved

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Last modified May 30 15:59 EDT 2024. Contains 372968 sequences. (Running on oeis4.)