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A219883 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array.

%I A219883 #6 Jul 23 2025 00:45:56
%S A219883 3,3,6,6,7,10,10,11,21,15,15,17,47,46,21,21,24,129,146,87,28,28,32,
%T A219883 292,621,410,151,36,36,41,600,2190,2645,1069,247,45,45,51,1158,6965,
%U A219883 14536,10350,2701,386,55,55,62,2148,21035,74998,89795,40239,6645,581,66,66,74
%N A219883 T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nXk array.
%C A219883 Table starts
%C A219883 ..3....3......6......10........15........21.........28.........36........45
%C A219883 ..6....7.....11......17........24........32.........41.........51........62
%C A219883 .10...21.....47.....129.......292.......600.......1158.......2148......3863
%C A219883 .15...46....146.....621......2190......6965......21035......60891....171009
%C A219883 .21...87....410....2645.....14536.....74998.....371384....1780796...8327951
%C A219883 .28..151...1069...10350.....89795....764027....6337533...51044999.398508546
%C A219883 .36..247...2701...40239....565824...8017398..113313853.1558416287
%C A219883 .45..386...6645..155199...3605746..85092182.2047979807
%C A219883 .55..581..15787..581728..22430565.882578607
%C A219883 .66..847..36047.2085519.132945658
%C A219883 .78.1201..79071.7121374
%C A219883 .91.1662.166909
%H A219883 R. H. Hardin, <a href="/A219883/b219883.txt">Table of n, a(n) for n = 1..111</a>
%e A219883 Some solutions for n=3 k=4
%e A219883 ..1..1..0..0....2..2..0..0....1..0..0..0....1..0..0..0....0..0..0..0
%e A219883 ..1..1..0..1....2..2..0..0....0..0..0..0....1..0..0..0....0..0..0..0
%e A219883 ..1..1..0..0....2..2..0..0....0..0..0..2....2..0..2..0....0..2..0..2
%Y A219883 Column 1 is A000217(n+1)
%Y A219883 Column 2 is A219589
%Y A219883 Row 1 is A000217 for n>1
%Y A219883 Row 2 is A046691 for n>2
%K A219883 nonn,tabl
%O A219883 1,1
%A A219883 _R. H. Hardin_ Nov 30 2012