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 A222017 Number of nX4 arrays of occupancy after each element stays put or moves to some horizontal or vertical neighbor, without move-in move-out straight through or left turns 2
 13, 1363, 86088, 5925053, 403317044, 27460842224, 1870475750419, 127385479747138, 8675741759311142, 590866503322144180, 40241368935424750183, 2740665723881270704902, 186654894043998446085330 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A222020 LINKS R. H. Hardin, Table of n, a(n) for n = 1..131 EXAMPLE Some solutions for n=3 ..1..0..1..1....0..3..1..2....1..0..0..1....0..1..2..0....2..2..2..2 ..0..3..1..2....0..0..0..0....1..4..0..3....2..1..2..0....0..0..0..0 ..1..1..0..1....2..1..3..0....0..1..1..0....2..0..2..0....1..1..0..2 CROSSREFS Sequence in context: A300592 A221690 A197630 * A238562 A196966 A203369 Adjacent sequences: A222014 A222015 A222016 * A222018 A222019 A222020 KEYWORD nonn AUTHOR R. H. Hardin Feb 05 2013 STATUS approved

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Last modified June 6 20:05 EDT 2023. Contains 363151 sequences. (Running on oeis4.)