|
%I #4 Feb 19 2016 08:48:55
%S 64,659,10167,123976,1529241,18220241,210476400,2427784475,
%T 27272243911,306906072088,3392662878321,37516091561153,
%U 410121025237344,4478699111368451,48545701054002647,525277883650197736
%N Number of 6Xn binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two not more than once.
%C Row 6 of A269075.
%H R. H. Hardin, <a href="/A269080/b269080.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..0..0..1. .1..0..0..1. .0..0..0..1. .1..0..1..0. .1..0..0..0
%e ..1..0..0..0. .0..0..0..1. .0..0..0..0. .0..0..1..0. .1..0..0..0
%e ..0..1..0..1. .1..0..0..0. .0..0..0..1. .0..0..0..1. .1..0..0..0
%e ..0..0..0..1. .0..0..0..0. .0..0..0..0. .0..1..0..1. .1..0..0..0
%e ..0..1..0..0. .1..0..1..1. .0..0..0..0. .0..0..0..0. .0..0..0..1
%e ..0..0..0..1. .1..0..0..0. .1..0..0..1. .0..0..0..0. .1..1..0..1
%Y Cf. A269075.
%K nonn
%O 1,1
%A _R. H. Hardin_, Feb 19 2016
| 