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%I #4 Nov 20 2016 07:43:15
%S 8,5936,652343,50473056,3325788157,198563803019,11105331450864,
%T 586395701904408,29015321337746085,1335864857344408243,
%U 57236190892283185233,2296849324984530935992,87126825773953105905476
%N Number of nX7 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.
%C Column 7 of A278385.
%H R. H. Hardin, <a href="/A278384/b278384.txt">Table of n, a(n) for n = 1..79</a>
%e Some solutions for n=2
%e ..0..1..0..1..1..0..1. .1..0..1..1..1..1..1. .0..1..1..1..1..0..1
%e ..0..0..0..1..1..1..0. .0..0..1..1..0..0..0. .0..0..0..1..0..0..1
%Y Cf. A278385.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 20 2016