A278380 - OEIS

%I #4 Nov 20 2016 07:39:12

%S 0,3,74,1220,12910,100807,652343,3750182,19784428,96786947,439906101,

%T 1859501560,7328752206,27039030100,93829708460,307762056698,

%U 958683800155,2848583303210,8105942966932,22169003715353,58456685214757

%N Number of nX3 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.

%C Column 3 of A278385.

%H R. H. Hardin, <a href="/A278380/b278380.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A278380/a278380.txt">Empirical polynomial of degree 31</a>

%F Empirical polynomial of degree 31 (see link above)

%e Some solutions for n=4

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

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

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

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

%Y Cf. A278385.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 20 2016