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A221736
T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, without move-in move-out left turns
9
1, 3, 1, 8, 17, 1, 21, 152, 91, 1, 55, 1347, 2904, 489, 1, 144, 11917, 89920, 54888, 2627, 1, 377, 105408, 2756353, 5962648, 1038128, 14113, 1, 987, 932331, 84394752, 635754537, 394328064, 19634240, 75819, 1, 2584, 8246429, 2583450288
OFFSET
1,2
COMMENTS
Table starts
.1........3............8..............21...............55...............144
.1.......17..........152............1347............11917............105408
.1.......91.........2904...........89920..........2756353..........84394752
.1......489........54888.........5962648........635754537.......67528875354
.1.....2627......1038128.......394328064.....146259316958....53939764009028
.1....14113.....19634240.....26082119800...33626894167368.43051262023996034
.1....75819....371344456...1725138005232.7731414333006969
.1...407321...7023277960.114104918937179
.1..2188243.132832016296
.1.11755857
.1
LINKS
EXAMPLE
Some solutions for n=3 k=4
..0..1..1..1....2..0..0..0....1..1..0..1....0..2..2..0....1..1..0..2
..2..2..0..2....0..2..1..0....1..1..3..0....1..1..1..1....0..3..3..0
..1..0..0..2....2..3..2..0....2..1..1..0....1..1..0..2....0..0..2..0
CROSSREFS
Row 1 is A001906
Sequence in context: A067955 A182509 A049965 * A077108 A075847 A193602
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 22 2013
STATUS
approved