A295378 - OEIS

%I #4 Nov 21 2017 07:11:01

%S 34,747,15557,325134,6819658,142860055,2995361770,62765357574,

%T 1315649551906,27574133240044,577944446997342,12113314594045600,

%U 253888394444548265,5321347134853621559,111532355602550043873

%N Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1s.

%C Column 7 of A295379.

%H R. H. Hardin, <a href="/A295378/b295378.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A295379.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 21 2017