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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A266426 Number of nX6 binary arrays with rows and columns lexicographically nondecreasing and column sums nondecreasing.

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%I A266426 #3 Dec 29 2015 09:53:08
%S A266426 7,63,574,5365,49894,448649,3825307,30555624,227542455,1579153474,
%T A266426 10236107278,62184207773,355425984636,1918894455423,9822580592133,
%U A266426 47841257692021,222427734697477,990076818618586
%N A266426 Number of nX6 binary arrays with rows and columns lexicographically nondecreasing and column sums nondecreasing.
%C A266426 Column 6 of A266428.
%e A266426 Some solutions for n=4
%e A266426 ..0..0..0..1..1..1....0..0..0..0..0..0....0..0..1..1..1..1....0..0..0..0..0..1
%e A266426 ..1..1..1..0..0..0....0..0..0..1..1..1....0..0..1..1..1..1....0..0..0..1..1..1
%e A266426 ..1..1..1..1..1..1....0..0..0..1..1..1....1..1..0..0..0..1....0..1..1..1..1..1
%e A266426 ..1..1..1..1..1..1....0..0..1..0..0..0....1..1..0..1..1..1....1..1..1..0..1..0
%Y A266426 Cf. A266428.
%K A266426 nonn
%O A266426 1,1
%A A266426 _R. H. Hardin_, Dec 29 2015

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