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 A221688 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some king-move neighbor, without consecutive moves in the same direction 1
 1, 3, 3, 6, 35, 6, 13, 396, 396, 13, 28, 4429, 17480, 4429, 28, 60, 49387, 780692, 780692, 49387, 60, 129, 550264, 34704624, 140268025, 34704624, 550264, 129, 277, 6129659, 1542552756 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ...1......3........6........13.......28.........60.....129.277 ...3.....35......396......4429....49387.....550264.6129659 ...6....396....17480....780692.34704624.1542552756 ..13...4429...780692.140268025 ..28..49387.34704624 ..60.550264 .129 LINKS EXAMPLE Some solutions for n=3 k=4 ..0..1..2..0....0..1..0..1....0..4..0..0....0..4..1..0....0..2..3..0 ..0..3..1..0....0..3..0..3....0..1..4..0....0..2..0..2....0..3..3..0 ..0..5..0..0....0..0..4..0....0..3..0..0....1..2..0..0....1..0..0..0 CROSSREFS Column 1 is A002478 Sequence in context: A103895 A221886 A221925 * A066358 A261295 A118031 Adjacent sequences:  A221685 A221686 A221687 * A221689 A221690 A221691 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 22 2013 STATUS approved

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Last modified August 10 16:24 EDT 2022. Contains 356039 sequences. (Running on oeis4.)