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 A219306 Unchanging value maps: number of nX4 binary arrays indicating the locations of corresponding elements unequal to no horizontal or vertical neighbor in a random 0..2 nX4 array 1
 7, 51, 423, 3334, 25647, 200376, 1574278, 12334824, 96480571, 755212375, 5914093280, 46306103745, 362524633360, 2838264260603, 22221912955624, 173982894127917, 1362160216940837, 10664747935404835, 83497581682654109 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A219310 LINKS R. H. Hardin, Table of n, a(n) for n = 1..48 EXAMPLE Some solutions for n=3 ..1..0..0..0....1..0..0..0....0..0..0..1....0..1..0..1....1..0..1..1 ..1..0..0..0....0..1..0..1....1..0..0..1....0..0..0..0....0..0..0..1 ..1..0..0..0....0..0..0..0....0..0..0..1....0..1..0..1....0..1..0..0 CROSSREFS Sequence in context: A222849 A273055 A019472 * A246572 A230883 A304939 Adjacent sequences: A219303 A219304 A219305 * A219307 A219308 A219309 KEYWORD nonn AUTHOR R. H. Hardin Nov 17 2012 STATUS approved

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Last modified September 12 05:07 EDT 2024. Contains 375842 sequences. (Running on oeis4.)