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 A223114 T(n,k)=Number of nXk 0..2 arrays with exactly floor(nXk/2) elements equal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order 8
 1, 0, 0, 0, 4, 0, 6, 28, 22, 0, 16, 124, 269, 184, 0, 16, 832, 5624, 6676, 1222, 0, 40, 6092, 64346, 244607, 92011, 9918, 0, 280, 40960, 1435644, 9329085, 10831996, 2301900, 73038, 0, 768, 284702, 17231678, 361530918, 713593552, 488343248, 32735497 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS Table starts .1........0...........0.............6............16.............16 .0........4..........28...........124...........832...........6092 .0.......22.........269..........5624.........64346........1435644 .0......184........6676........244607.......9329085......361530918 .0.....1222.......92011......10831996.....713593552....92719306520 .0.....9918.....2301900.....488343248..107964680902.24139544534018 .0....73038....32735497...22325434918.8477145578374 .0...571736...837862668.1030482342515 .0..4390202.12106093706 .0.34351802 LINKS R. H. Hardin, Table of n, a(n) for n = 1..71 EXAMPLE Some solutions for n=3 k=4 ..0..1..2..2....0..1..2..0....0..1..0..0....0..1..0..2....0..1..0..1 ..2..0..0..1....0..1..2..1....2..1..0..0....1..2..1..1....1..1..2..1 ..0..1..2..1....0..0..0..2....2..1..0..0....1..2..1..1....2..1..0..0 CROSSREFS Column 2 is A222885 Row 1 is A222884 Sequence in context: A265644 A296230 A222889 * A222832 A279871 A223052 Adjacent sequences: A223111 A223112 A223113 * A223115 A223116 A223117 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 14 2013 STATUS approved

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Last modified March 30 00:49 EDT 2023. Contains 361599 sequences. (Running on oeis4.)