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 A222794 T(n,k)=Number of nXk 0..3 arrays with exactly floor(nXk/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order 14
 1, 0, 0, 0, 3, 0, 3, 4, 8, 0, 4, 18, 34, 55, 0, 8, 62, 275, 582, 294, 0, 10, 302, 888, 5896, 3800, 1883, 0, 55, 1246, 14292, 77978, 137804, 92642, 11920, 0, 72, 6094, 62072, 1026076, 1615706, 3315998, 589134, 78255, 0, 294, 26914, 1144030, 16057219 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS Table starts .1.........0............0...............3.................4..................8 .0.........3............4..............18................62................302 .0.........8...........34.............275...............888..............14292 .0........55..........582............5896.............77978............1026076 .0.......294.........3800..........137804...........1615706...........88097352 .0......1883........92642.........3315998.........163288090.........8113737592 .0.....11920.......589134........80934417........3723507945.......762956665320 .0.....78255.....15697114......1992934141......374218329866.....72357582862167 .0....517050....101205850.....49390328481.....8769044681276...6893999224041770 .0...3451712...2768968458...1230248849616...883217207685508.659082936314507965 .0..23156964..17982090240..30772191192457.20907867146102343 .0.156076271.499074464184.772421301648384 LINKS R. H. Hardin, Table of n, a(n) for n = 1..125 EXAMPLE Some solutions for n=3 k=4 ..0..1..0..2....0..0..1..1....0..0..1..0....0..0..0..0....0..0..0..0 ..1..2..2..2....1..0..1..1....0..0..2..2....0..0..0..1....0..0..0..1 ..2..2..2..2....1..1..1..1....2..2..2..2....2..2..0..0....2..0..3..3 CROSSREFS Row 1 is A222269 Sequence in context: A277092 A060858 A222690 * A127749 A198431 A138188 Adjacent sequences:  A222791 A222792 A222793 * A222795 A222796 A222797 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 05 2013 STATUS approved

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Last modified May 17 21:11 EDT 2021. Contains 343990 sequences. (Running on oeis4.)