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A293080
Number of n X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.
1
0, 0, 53, 8108, 3786544, 6736259130, 48001754870966, 1383438455350705382, 161312497547006248372814, 76023645347398961263283802334, 144620752785016707502340606159808938
OFFSET
1,3
COMMENTS
Diagonal of A293087.
LINKS
EXAMPLE
Some solutions for n=4
..1..1..1..0. .0..0..0..0. .0..1..1..0. .1..1..0..0. .0..1..1..0
..0..1..1..0. .1..1..0..0. .0..0..1..1. .1..0..1..1. .0..0..0..1
..0..0..1..0. .0..0..0..1. .0..0..0..1. .0..1..1..0. .1..0..0..1
..0..0..0..1. .0..0..1..1. .0..0..1..0. .0..0..1..0. .0..1..1..0
CROSSREFS
Cf. A293087.
Sequence in context: A088784 A104820 A093253 * A267950 A268097 A169595
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 30 2017
STATUS
approved