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A286974 Number of n X 3 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 two less than the number of 0's adjacent to some 1. 1
0, 5, 50, 538, 3932, 32253, 238532, 1875212, 14222474, 110768815, 851356180, 6619388000, 51243150110, 398853561051, 3101596551513, 24188042117410, 188685917890136, 1474444397004861, 11529364760294089, 90260751863587788 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 3 of A286979.
LINKS
EXAMPLE
Some solutions for n=4
..1..0..1. .0..0..1. .0..1..0. .0..1..1. .1..0..0. .1..1..0. .0..1..1
..0..0..1. .1..1..0. .0..1..1. .0..0..0. .0..0..0. .1..1..0. .0..0..1
..1..0..0. .0..0..1. .0..1..0. .1..1..0. .1..0..1. .1..0..0. .0..0..1
..0..1..0. .0..1..0. .0..1..0. .0..1..0. .1..0..0. .0..0..1. .1..0..0
CROSSREFS
Cf. A286979.
Sequence in context: A077330 A113330 A079157 * A199762 A078244 A233068
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 17 2017
STATUS
approved

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Last modified July 23 04:09 EDT 2024. Contains 374544 sequences. (Running on oeis4.)