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A283383
Number of nX5 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.
1
0, 91, 4420, 116624, 2993934, 71707838, 1644385909, 36631580212, 797807876394, 17071093013959, 360093050350939, 7506214481935722, 154911588816764077, 3169754325029230295, 64378159448861378436, 1299032728948862185980
OFFSET
1,2
COMMENTS
Column 5 of A283386.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..1..1. .0..0..0..0..0. .1..0..1..0..1. .0..0..1..0..0
..1..0..0..1..0. .1..0..1..0..1. .0..0..1..0..1. .1..0..1..1..1
..0..0..0..1..0. .0..0..1..1..1. .0..1..0..1..0. .0..0..0..1..0
..0..1..0..1..0. .0..0..1..0..0. .1..0..1..1..1. .1..1..1..0..1
CROSSREFS
Cf. A283386.
Sequence in context: A129965 A017807 A017754 * A004380 A234123 A103855
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 06 2017
STATUS
approved