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 A221240 T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without 2-loops 5
 0, 0, 0, 0, 5, 0, 0, 53, 53, 0, 0, 467, 1979, 467, 0, 0, 3913, 67710, 67710, 3913, 0, 0, 32299, 2217402, 8959341, 2217402, 32299, 0, 0, 265353, 71862107, 1130617545, 1130617545, 71862107, 265353, 0, 0, 2176758, 2319920239, 141336723259 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS Table starts .0........0...........0..............0...............0...............0 .0........5..........53............467............3913...........32299 .0.......53........1979..........67710.........2217402........71862107 .0......467.......67710........8959341......1130617545....141336723259 .0.....3913.....2217402.....1130617545....543708183481.258758829845879 .0....32299....71862107...141336723259.258758829845879 .0...265353..2319920239.17607272065860 .0..2176758.74798189113 .0.17847997 .0 LINKS R. H. Hardin, Table of n, a(n) for n = 1..60 EXAMPLE Some solutions for n=3 k=4 ..1..1..0..1....0..2..1..1....0..1..0..0....0..0..0..1....0..3..1..1 ..2..0..4..2....0..1..5..2....1..3..0..3....2..1..4..1....0..0..3..1 ..1..0..0..0....0..0..0..0....0..1..2..1....1..0..1..1....0..1..1..1 CROSSREFS Sequence in context: A075534 A221361 A083527 * A113038 A082512 A068385 Adjacent sequences: A221237 A221238 A221239 * A221241 A221242 A221243 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 06 2013 STATUS approved

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Last modified December 8 16:32 EST 2023. Contains 367680 sequences. (Running on oeis4.)