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A220241
Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and vertical neighbors in a random 0..1 nX5 array
0
7, 292, 8127, 219617, 5804389, 165087351
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OFFSET
1,1
COMMENTS
Column 5 of
A220242
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions for n=3
..0..0..0..1..1....0..0..0..0..0....1..0..1..1..0....0..1..1..0..1
..0..0..1..1..1....0..1..1..0..1....1..0..0..1..1....0..1..0..0..1
..0..1..1..1..0....0..1..0..0..1....1..0..0..1..1....0..0..0..0..1
CROSSREFS
Sequence in context:
A096548
A160072
A137435
*
A041851
A082168
A362658
Adjacent sequences:
A220238
A220239
A220240
*
A220242
A220243
A220244
KEYWORD
nonn
AUTHOR
R. H. Hardin
Dec 08 2012
STATUS
approved
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Last modified July 18 01:34 EDT 2024. Contains 374377 sequences. (Running on oeis4.)