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A219915
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T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array
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12
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3, 3, 3, 6, 3, 6, 10, 6, 7, 10, 15, 10, 24, 12, 15, 21, 15, 64, 62, 21, 21, 28, 21, 147, 234, 155, 35, 28, 36, 28, 308, 758, 819, 356, 57, 36, 45, 36, 606, 2215, 3800, 2563, 789, 91, 45, 55, 45, 1144, 6089, 16159, 17007, 7877, 1716, 142, 55, 66, 55, 2097, 16131, 65802
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OFFSET
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1,1
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COMMENTS
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Table starts
..3...3.....6.....10......15.......21.......28.......36.......45........55
..3...3.....6.....10......15.......21.......28.......36.......45........55
..6...7....24.....64.....147......308......606.....1144.....2097......3761
.10..12....62....234.....758.....2215.....6089....16131....41601....104732
.15..21...155....819....3800....16159....65802...262840..1033491...3983613
.21..35...356...2563...17007...105936...645589..3916436.23461117.137270726
.28..57...789...7877...76385...715430..6705546.63193592
.36..91..1716..24318..349806..4968426.71452528
.45.142..3676..74901.1607125.34708110
.55.216..7708.225552.7199979
.66.320.15724.655360
.78.462.31125
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LINKS
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EXAMPLE
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Some solutions for n=3 k=4
..0..0..0..0....2..1..1..1....0..0..0..0....2..0..0..0....2..0..0..0
..0..0..0..0....2..1..1..1....0..0..0..0....2..0..0..0....2..0..0..0
..2..2..2..2....2..1..1..1....0..0..0..1....2..2..2..2....2..2..1..1
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CROSSREFS
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Column 1, Rows 1 and 2 are A000217 for 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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