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Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically
1

%I #5 Mar 31 2012 12:37:18

%S 35,1225,2233,11306,39050,89417,268275,667760,1691526,4324858,

%T 10910668,28038606,71784122,186198243,482642047,1259170885,3300248079,

%U 8616047712,22660486326,59449698479,156019165327,410863919802,1077513243234

%N Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically

%C Row 7 of A207488

%H R. H. Hardin, <a href="/A207492/b207492.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 18 2012