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A235756
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T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise
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4
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81, 498, 498, 2996, 6578, 2996, 15782, 88732, 88732, 15782, 80584, 996868, 2721271, 996868, 80584, 388008, 10878790, 68186440, 68186440, 10878790, 388008, 1819537, 107853469, 1669079300, 3951955004, 1669079300, 107853469, 1819537, 8271237
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OFFSET
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1,1
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COMMENTS
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Table starts
........81.........498...........2996...........15782............80584
.......498........6578..........88732..........996868.........10878790
......2996.......88732........2721271........68186440.......1669079300
.....15782......996868.......68186440......3951955004.....229794497298
.....80584....10878790.....1669079300....229794497298...32851676943413
....388008...107853469....36221011849..11883494266538.4249799416665556
...1819537..1029949275...753688651636.593235221174732
...8271237..9302743070.14525190680041
..36871545.81316688449
.161304512
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LINKS
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EXAMPLE
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Some solutions for n=2 k=4
..0..0..1..0..1....2..0..0..2..2....1..0..2..2..0....2..0..2..2..2
..0..2..0..2..0....0..0..0..1..2....0..0..2..2..2....0..0..1..0..2
..0..0..1..0..1....1..0..0..0..2....0..0..0..2..0....0..0..1..1..2
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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