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 A221234 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, with no occupancy greater than 2 5
 0, 1, 1, 2, 14, 2, 4, 119, 119, 4, 8, 852, 2372, 852, 8, 16, 6360, 54075, 54075, 6360, 16, 32, 47334, 1211716, 3618339, 1211716, 47334, 32, 64, 351402, 27341781, 245539157, 245539157, 27341781, 351402, 64, 128, 2609499, 616856209, 16783348483 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS Table starts ...0........1...........2.............4..............8.............16 ...1.......14.........119...........852...........6360..........47334 ...2......119........2372.........54075........1211716.......27341781 ...4......852.......54075.......3618339......245539157....16783348483 ...8.....6360.....1211716.....245539157....50220166341.10357727346177 ..16....47334....27341781...16783348483.10357727346177 ..32...351402...616856209.1149649557942 ..64..2609499.13916105891 .128.19373481 .256 LINKS R. H. Hardin, Table of n, a(n) for n = 1..60 EXAMPLE Some solutions for n=3 k=4 ..0..1..1..0....0..1..0..1....0..0..0..0....1..1..1..0....2..0..1..1 ..0..1..2..0....1..0..1..1....2..2..0..2....0..2..1..2....1..1..1..1 ..1..2..2..2....2..2..1..2....0..2..2..2....1..0..2..1....0..2..1..1 CROSSREFS Sequence in context: A349877 A196815 A260120 * A133420 A227628 A298800 Adjacent sequences: A221231 A221232 A221233 * A221235 A221236 A221237 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 05 2013 STATUS approved

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Last modified October 3 13:46 EDT 2023. Contains 365866 sequences. (Running on oeis4.)