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A207000
T(n,k)=Number of nXk 0..1 arrays avoiding 0 1 0 horizontally and 0 1 1 vertically
10
2, 4, 4, 7, 16, 7, 12, 49, 49, 12, 21, 144, 230, 144, 20, 37, 441, 1011, 1020, 400, 33, 65, 1369, 4705, 6612, 4120, 1089, 54, 114, 4225, 22412, 45932, 38144, 16109, 2916, 88, 200, 12996, 105936, 329734, 382349, 211471, 61003, 7744, 143, 351, 40000, 497727
OFFSET
1,1
COMMENTS
Table starts
..2....4......7......12........21.........37...........65...........114
..4...16.....49.....144.......441.......1369.........4225.........12996
..7...49....230....1011......4705......22412.......105936........497727
.12..144...1020....6612.....45932.....329734......2346621......16555996
.20..400...4120...38144....382349....3997768.....41429335.....424457832
.33.1089..16109..211471...3032756...45723467....683241763...10070110597
.54.2916..61003.1124120..22816988..490003769..10432265840..218637649146
.88.7744.227197.5856490.167677230.5103567157.154004233160.4567604720632
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..0..1....1..1..0....0..0..1....0..0..1....1..1..1....1..0..0....0..1..1
..0..0..0....1..0..1....0..1..1....0..0..1....1..1..1....0..0..1....1..0..0
..1..0..1....1..0..0....1..0..0....0..0..1....0..1..1....1..0..0....0..0..1
..0..0..0....0..1..1....0..0..0....1..1..1....0..1..1....0..1..1....1..1..0
CROSSREFS
Column 1 is A000071(n+3)
Column 2 is A188516
Column 3 is A206780
Row 1 is A005251(n+3)
Row 2 is A188501
Row 3 is A206878
Sequence in context: A188763 A188695 A188508 * A206883 A206889 A188774
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 14 2012
STATUS
approved