A206875 - OEIS

%I #7 Apr 16 2023 20:23:36

%S 37,1369,17737,397221,8373905,159327093,3254925997,65503023421,

%T 1306330464063,26282885757023,527346719280577,10574042671627575,

%U 212249791397406163,4258527016456970551,85440779581637659129

%N Number of 6 X n 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically.

%C Row 6 of A206871.

%H R. H. Hardin, <a href="/A206875/b206875.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A206871.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 13 2012