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Number of 5X5 0..n arrays with rows and columns in lexicographically nondecreasing order
1

%I #4 Sep 29 2013 18:57:57

%S 24520,318174607,348053502590,83399309397669,7470491620551006,

%T 337176110123479647,9191448163080152260,170263099219981493623,

%U 2323791090717304237514,24760438397023153230241,214990023150964441381574

%N Number of 5X5 0..n arrays with rows and columns in lexicographically nondecreasing order

%C Row 5 of A229794

%H R. H. Hardin, <a href="/A229798/b229798.txt">Table of n, a(n) for n = 1..17</a>

%e Some solutions for n=1

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 29 2013