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A220581 Equals one maps: number of 3Xn binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 3Xn array 1
1, 32, 91, 1441, 8334, 64497, 436288, 3036588, 21023792, 146254012, 1011489196, 7016643627, 48603225482, 336693889957, 2332461879768, 16156948253940, 111913294295697, 775187951935208, 5369332881497134, 37190288381188178 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 3 of A220579
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1....1..1..1....0..0..1....1..0..0....0..1..1....1..0..0....0..0..0
..1..0..1....1..0..0....1..0..1....0..1..0....1..1..0....0..0..1....0..0..1
..1..0..0....0..0..1....1..0..1....0..0..0....0..1..1....1..0..1....1..1..0
CROSSREFS
Sequence in context: A318073 A279713 A228801 * A297730 A360436 A124804
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 16 2012
STATUS
approved

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Last modified April 16 01:01 EDT 2024. Contains 371696 sequences. (Running on oeis4.)