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 A220327 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..1 nX6 array 0
 12, 658, 29467, 1335202, 59893608, 2680626797, 119808040854, 5350328821481 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A220328 LINKS Table of n, a(n) for n=1..8. EXAMPLE Some solutions for n=3 ..0..0..1..0..1..0....0..0..0..1..1..0....0..0..0..1..0..1....0..0..0..1..1..0 ..1..1..1..1..0..0....0..1..0..0..1..0....0..0..0..1..1..1....1..0..1..1..0..1 ..0..1..0..1..0..0....1..1..1..0..1..0....1..0..0..0..1..0....0..1..1..0..1..0 CROSSREFS Sequence in context: A071307 A195574 A195554 * A281780 A295870 A177322 Adjacent sequences: A220324 A220325 A220326 * A220328 A220329 A220330 KEYWORD nonn AUTHOR R. H. Hardin Dec 10 2012 STATUS approved

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Last modified November 28 15:31 EST 2023. Contains 367419 sequences. (Running on oeis4.)