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A209100
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T(n,k)=Number of nXk 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors
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14
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1, 2, 2, 5, 11, 5, 14, 76, 82, 14, 41, 520, 1326, 612, 41, 122, 3552, 20928, 23248, 4568, 122, 365, 24256, 329064, 849548, 407832, 34096, 365, 1094, 165632, 5171088, 30836932, 34538488, 7154944, 254496, 1094, 3281, 1131008, 81254376, 1118366188
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OFFSET
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1,2
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COMMENTS
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Table starts
....1.......2..........5............14...............41.................122
....2......11.........76...........520.............3552...............24256
....5......82.......1326.........20928...........329064.............5171088
...14.....612......23248........849548.........30836932..........1118366188
...41....4568.....407832......34538488.......2896732704........242632290432
..122...34096....7154944....1404480904.....272236743760......52675800891748
..365..254496..125526240...57113932788...25586970618660...11437585318270860
.1094.1899584.2202232576.2322577420320.2404896311723064.2483525516352937680
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LINKS
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EXAMPLE
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Some solutions for n=4 k=3
..0..0..0....0..0..0....0..0..1....0..0..0....0..0..1....0..0..1....0..0..0
..1..1..1....1..1..2....1..2..1....1..1..1....2..0..2....2..0..2....1..1..2
..2..0..0....2..0..0....1..0..1....2..2..0....0..2..0....1..0..2....2..0..1
..1..2..2....1..1..1....2..1..2....1..2..1....2..0..2....1..2..1....0..1..0
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CROSSREFS
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Column 1 and row 1 are A007051(n-1)
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KEYWORD
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AUTHOR
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STATUS
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approved
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