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A220285
Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..1 nX4 array
0
8, 96, 1411, 15382, 232795, 3061937, 40463019, 533004621
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OFFSET
1,1
COMMENTS
Column 4 of
A220287
LINKS
Table of n, a(n) for n=1..8.
EXAMPLE
Some solutions for n=3
..1..0..0..0....1..0..1..1....1..1..1..1....1..1..1..1....0..0..0..1
..1..0..0..0....1..0..0..0....0..0..1..1....1..0..0..1....0..1..0..0
..1..1..0..0....0..0..0..0....1..0..1..0....1..1..0..1....1..0..0..0
CROSSREFS
Sequence in context:
A098430
A365847
A369538
*
A052570
A034177
A002168
Adjacent sequences:
A220282
A220283
A220284
*
A220286
A220287
A220288
KEYWORD
nonn
AUTHOR
R. H. Hardin
Dec 09 2012
STATUS
approved
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Last modified April 24 17:51 EDT 2024. Contains 371962 sequences. (Running on oeis4.)