A295351 - OEIS

%I #4 Nov 20 2017 12:22:27

%S 34,883,19214,499257,13795489,390440690,11500075769,345835713946,

%T 10540491064074,324181694265205,10024652659801063,311027223220129638,

%U 9669817180969786054,301007251989809582216,9376979451161266929948

%N Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 2 or 3 1s.

%C Column 7 of A295352.

%H R. H. Hardin, <a href="/A295351/b295351.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A295352.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 20 2017