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A233062 T(n,k)=Number of (n+1)X(k+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..k+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing 9

%I #4 Dec 03 2013 19:33:08

%S 7,13,16,22,47,33,34,130,161,66,50,319,723,564,132,70,755,2875,4393,

%T 1933,265,95,1680,10650,30692,26819,6529,530,125,3673,36674,197625,

%U 334580,162916,21904,1052,161,7751,119979,1180594,3849923,3654675,986252,72710

%N T(n,k)=Number of (n+1)X(k+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..k+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing

%C Table starts

%C ....7.....13........22.........34..........50..........70..........95

%C ...16.....47.......130........319.........755........1680........3673

%C ...33....161.......723.......2875.......10650.......36674......119979

%C ...66....564......4393......30692......197625.....1180594.....6637131

%C ..132...1933.....26819.....334580.....3849923....41069900...410815334

%C ..265...6529....162916....3654675....76267521..1476777204.26815913185

%C ..530..21904....986252...39886178..1522090763.53995730752

%C .1052..72710...5942365..433495407.30425555678

%C .2092.238992..35694392.4690717033

%C .4183.781279.213988742

%H R. H. Hardin, <a href="/A233062/b233062.txt">Table of n, a(n) for n = 1..84</a>

%e Some solutions for n=4 k=4

%e ..0..0..1..0..1....0..0..1..1..1....0..1..0..0..1....0..0..1..1..0

%e ..0..0..0..1..1....1..1..1..0..0....1..0..1..0..0....0..0..0..1..1

%e ..0..0..0..1..1....0..1..1..0..1....0..0..0..1..1....1..0..0..1..1

%e ..1..0..0..0..1....0..0..1..1..1....0..0..1..1..0....0..1..1..0..1

%e ..0..1..1..1..1....0..1..0..1..1....0..1..0..0..1....0..1..1..1..1

%Y Row 1 is A002623(n+1)

%K nonn,tabl

%O 1,1

%A _R. H. Hardin_, Dec 03 2013

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)