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A208013 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically 10
2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 90, 81, 12, 19, 169, 261, 225, 144, 16, 28, 361, 624, 841, 420, 256, 20, 41, 784, 1482, 2304, 1943, 784, 400, 25, 60, 1681, 3808, 6084, 5952, 4489, 1260, 625, 30, 88, 3600, 9512, 18496, 16224, 15376, 8643, 2025, 900, 36, 129 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
..2...4....6.....9....13.....19.....28......41.......60.......88.......129
..4..16...36....81...169....361....784....1681.....3600.....7744.....16641
..6..36...90...261...624...1482...3808....9512....23280....58080....144996
..9..81..225...841..2304...6084..18496...53824...150544...435600...1263376
.12.144..420..1943..5952..16224..55624..181192...545140..1737120...5591900
.16.256..784..4489.15376..43264.167281..609961..1974025..6927424..24750625
.20.400.1260..8643.32860..92560.393049.1578401..5340405.20121640..78251775
.25.625.2025.16641.70225.198025.923521.4084441.14447601.58446025.247401441
LINKS
EXAMPLE
Some solutions for n=4 k=3
..0..1..1....1..0..0....1..0..0....1..0..0....1..0..0....0..0..1....0..1..0
..1..1..0....0..0..1....1..1..0....0..1..0....0..1..1....0..1..0....1..1..0
..0..1..1....1..0..0....1..0..0....1..0..0....1..0..0....0..0..1....0..1..0
..1..0..0....0..0..1....0..1..0....0..1..0....0..0..1....0..1..0....1..0..0
CROSSREFS
Column 1 is A002620(n+2)
Column 2 is A030179(n+2)
Column 3 is A207363
Row 1 is A000930(n+3)
Row 2 is A207170
Row 3 is A207171
Sequence in context: A207885 A207762 A207368 * A207785 A207242 A207500
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 22 2012
STATUS
approved

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Last modified July 14 19:09 EDT 2024. Contains 374323 sequences. (Running on oeis4.)