A295715 - OEIS

%I #4 Nov 26 2017 09:28:07

%S 128,10329,786804,61023234,4725935539,366212961052,28373170135641,

%T 2198260487199227,170316434139541414,13195718014328336932,

%U 1022372882849049101482,79211033971975236785553

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

%C Column 7 of A295716.

%H R. H. Hardin, <a href="/A295715/b295715.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A295716.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 26 2017