cp's OEIS Frontend

A266432 Number of 6Xn binary arrays with rows and columns lexicographically nondecreasing and column sums nondecreasing.

%I A266432 #4 Dec 29 2015 10:18:59
%S A266432 7,50,433,4383,45907,448649,3889553,29520031,197001842,1168481498,
%T A266432 6234449897,30265682491,135048855227,558800630541,2160517610564,
%U A266432 7856777499625,27025799141430,88367939113010,275837411169430
%N A266432 Number of 6Xn binary arrays with rows and columns lexicographically nondecreasing and column sums nondecreasing.
%C A266432 Row 6 of A266428.
%H A266432 R. H. Hardin, <a href="/A266432/b266432.txt">Table of n, a(n) for n = 1..210</a>
%H A266432 R. H. Hardin, <a href="/A266432/a266432_1.txt">Empirical polynomial of degree 33</a>
%F A266432 Empirical polynomial of degree 33 (see link above)
%e A266432 Some solutions for n=4
%e A266432 ..0..0..0..1....0..0..1..1....0..0..0..0....0..0..0..1....0..0..0..1
%e A266432 ..0..0..0..1....0..0..1..1....0..1..1..1....0..0..1..0....0..0..0..1
%e A266432 ..0..0..0..1....0..1..0..0....0..1..1..1....0..1..0..1....0..0..1..1
%e A266432 ..0..0..0..1....0..1..0..0....1..0..0..0....0..1..1..0....0..0..1..1
%e A266432 ..0..1..1..0....1..0..0..1....1..0..0..0....0..1..1..1....1..1..1..0
%e A266432 ..1..1..1..0....1..0..1..1....1..1..1..1....0..1..1..1....1..1..1..0
%Y A266432 Cf. A266428.
%K A266432 nonn
%O A266432 1,1
%A A266432 _R. H. Hardin_, Dec 29 2015