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A183284 Half the number of nX3 binary arrays with the number of 1-1 horizontal, vertical, diagonal and antidiagonal adjacencies equal to the number of 0-0 adjacencies 1
1, 6, 1, 180, 116, 8016, 9746, 398126, 725872, 20910204, 50854089, 1137666502, 3437745554, 63460798680, 227195157189, 3607654634376, 14790377127600, 208205724243960, 952891467281892, 12165590563428240, 60941926764726246 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 3 of A183289
LINKS
EXAMPLE
Some solutions for 4X3 with a(1,1)=0
..0..1..1....0..0..0....0..1..1....0..0..1....0..0..0....0..1..1....0..1..0
..0..1..1....1..1..0....1..1..1....1..1..0....0..1..1....0..0..1....1..1..0
..0..0..1....1..0..1....0..0..0....1..0..1....0..1..1....0..1..0....0..1..0
..0..0..1....1..0..1....1..0..0....0..0..1....1..0..0....0..1..1....0..0..1
CROSSREFS
Sequence in context: A303675 A266302 A352012 * A224476 A123147 A119831
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 03 2011
STATUS
approved

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Last modified May 18 16:47 EDT 2024. Contains 372664 sequences. (Running on oeis4.)