%I #4 Nov 19 2016 12:00:09
%S 20,281,3183,34038,366982,4058169,44208465,451571539,4213513472,
%T 35702217342,275765596545,1955472740426,12826024056862,78357459733281,
%U 448627173302773,2420105832394544,12358148308045511,59981333718872012
%N Number of nX5 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.
%C Column 5 of A278363.
%H R. H. Hardin, <a href="/A278360/b278360.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A278360/a278360.txt">Empirical polynomial of degree 63</a>
%F Empirical polynomial of degree 63 (see link above)
%e Some solutions for n=4
%e ..0..0..0..1..0. .0..1..1..0..1. .0..0..0..1..1. .0..0..1..0..1
%e ..0..0..1..0..0. .1..0..0..0..0. .0..1..1..1..1. .0..0..1..0..1
%e ..0..0..1..1..1. .1..0..1..0..1. .1..1..1..0..0. .0..1..1..0..0
%e ..0..1..0..1..1. .1..0..1..1..0. .1..0..0..1..1. .1..1..1..1..1
%Y Cf. A278363.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 19 2016