A297642 - OEIS

%I #4 Jan 02 2018 12:04:04

%S 64,341,10587,109790,2171757,36084211,715726580,13224204993,

%T 261938528068,5203999725344,104668658789888,2103525884791406,

%U 42565982691388772,862789155518491293,17507548215488386765,355424056605280735400

%N Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 3 neighboring 1s.

%C Row 6 of A297637.

%H R. H. Hardin, <a href="/A297642/b297642.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

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

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

%Y Cf. A297637.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 02 2018