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A221289 Equals two maps: number of nX6 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 nX6 array 0
12, 792, 48298, 2890017, 172905144, 10344276279, 618825190371, 37018574118868, 2214457259485909, 132469006243923162, 7924304243009714341, 474032340904538992523, 28356641623302251544461 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A221290
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..1..0..0....0..0..0..0..1..1....0..0..0..1..0..0....0..0..1..0..0..1
..1..1..0..0..1..0....1..0..0..0..0..0....0..0..1..1..0..1....1..0..1..0..1..0
..0..0..1..1..0..0....1..1..1..0..1..0....1..0..1..0..1..0....1..0..1..1..0..0
CROSSREFS
Sequence in context: A291999 A282437 A285150 * A341562 A155813 A220119
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2013
STATUS
approved

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Last modified March 19 07:41 EDT 2024. Contains 370958 sequences. (Running on oeis4.)