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A206889
T(n,k)=Number of nXk 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically
10
2, 4, 4, 7, 16, 7, 12, 49, 49, 12, 21, 144, 240, 144, 20, 37, 441, 1103, 1112, 400, 33, 65, 1369, 5357, 7878, 4792, 1089, 54, 114, 4225, 26564, 59812, 51800, 20129, 2916, 88, 200, 12996, 130828, 467146, 607043, 330951, 82807, 7744, 143, 351, 40000, 641137
OFFSET
1,1
COMMENTS
Table starts
..2....4......7.......12........21..........37............65............114
..4...16.....49......144.......441........1369..........4225..........12996
..7...49....240.....1103......5357.......26564........130828.........641137
.12..144...1112.....7878.....59812......467146.......3619683.......27856426
.20..400...4792....51800....607043.....7354488......88342972.....1052865902
.33.1089..20129...330951...5963040...111550389....2067672443....37988878275
.54.2916..82807..2070564..57268342..1648854501...47015346159..1328156697136
.88.7744.337209.12830802.544455870.24096775331.1055711535814.45805591252624
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..1..0....0..1..1....1..1..0....0..0..1....0..0..0....0..0..1....1..0..0
..0..0..0....0..1..1....0..0..0....0..0..0....1..0..0....0..1..1....1..0..1
..1..1..1....0..1..1....1..1..1....1..1..1....0..1..1....1..0..0....1..0..1
..1..0..0....0..1..1....0..1..1....0..0..0....1..0..1....1..1..1....1..0..1
CROSSREFS
Column 1 is A000071(n+3)
Column 2 is A188516
Column 3 is A188757
Row 1 is A005251(n+3)
Row 2 is A188501
Row 3 is A188768
Sequence in context: A188508 A207000 A206883 * A188774 A206936 A206871
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 13 2012
STATUS
approved