A295377 - OEIS

%I #4 Nov 21 2017 07:10:13

%S 21,299,4071,55643,761795,10437240,142860055,1956512289,26790134422,

%T 366852068404,5023461594972,68788552129955,941953214288271,

%U 12898594994181355,176626393130327608,2418626153744793468

%N Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 4 1s.

%C Column 6 of A295379.

%H R. H. Hardin, <a href="/A295377/b295377.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A295379.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 21 2017