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A225899 Number of nX7 binary arrays whose sum with another nX7 binary array containing no more than a single 1 has rows and columns in lexicographically nondecreasing order 1

%I

%S 29,527,12910,396804,13135919,415506534,11798042714,293929504271,

%T 6410647528344,123230963555568,2108540231577387,32445522511325004,

%U 453328739037902357,5800810253342331239,68494482714581515641

%N Number of nX7 binary arrays whose sum with another nX7 binary array containing no more than a single 1 has rows and columns in lexicographically nondecreasing order

%C Column 7 of A225900

%H R. H. Hardin, <a href="/A225899/b225899.txt">Table of n, a(n) for n = 1..67</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ May 20 2013

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Last modified January 25 23:56 EST 2022. Contains 350572 sequences. (Running on oeis4.)