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 A220545 T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..2 nXk array 4
 1, 2, 2, 4, 8, 4, 8, 38, 38, 8, 16, 176, 395, 176, 16, 32, 816, 3778, 3778, 816, 32, 64, 3616, 32126, 64968, 32126, 3616, 64, 128, 15362, 261042, 1047584, 1047584, 261042, 15362, 128, 256, 63484, 2095121, 16776012, 33552929, 16776012, 2095121, 63484, 256, 512 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ...1......2........4.........8.........16.........32........64........128 ...2......8.......38.......176........816.......3616.....15362......63484 ...4.....38......395......3778......32126.....261042...2095121...16773300 ...8....176.....3778.....64968....1047584...16776012.268433898.4294965416 ..16....816....32126...1047584...33552929.1073740632 ..32...3616...261042..16776012.1073740632 ..64..15362..2095121.268433898 .128..63484.16773300 .256.258180 .512 LINKS R. H. Hardin, Table of n, a(n) for n = 1..59 EXAMPLE Some solutions for n=3 k=4 ..1..1..1..0....0..1..1..0....1..0..1..1....0..1..0..1....1..0..0..1 ..0..0..0..0....1..1..0..0....0..1..1..0....0..0..0..1....1..1..0..0 ..1..0..0..1....0..1..1..0....1..0..0..1....1..0..1..1....0..0..1..1 CROSSREFS Column 1 is A000079(n-1) Sequence in context: A116694 A220810 A221024 * A220751 A220967 A221590 Adjacent sequences:  A220542 A220543 A220544 * A220546 A220547 A220548 KEYWORD nonn,tabl AUTHOR R. H. Hardin Dec 15 2012 STATUS approved

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Last modified January 25 19:09 EST 2020. Contains 331249 sequences. (Running on oeis4.)