|
%I #4 Dec 15 2016 11:09:58
%S 0,352,23072,1356120,72177144,3684310576,181962323164,8787026600092,
%T 417085943095700,19534107020719616,905081723458584548,
%U 41566958473756323604,1894986340410192048268,85851638573599652691500
%N Number of 4Xn 0..2 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
%C Row 4 of A279580.
%H R. H. Hardin, <a href="/A279583/b279583.txt">Table of n, a(n) for n = 1..109</a>
%e Some solutions for n=3
%e ..0..0..1. .0..1..0. .0..1..2. .0..1..0. .0..0..1. .0..1..0. .0..1..1
%e ..1..1..2. .0..1..1. .1..2..2. .2..0..0. .1..1..2. .2..2..0. .0..0..2
%e ..0..0..2. .1..2..1. .0..2..1. .0..1..1. .0..1..1. .1..1..1. .0..2..0
%e ..2..0..2. .0..2..2. .0..0..2. .1..2..0. .0..2..1. .1..0..1. .0..1..1
%Y Cf. A279580.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 15 2016
| 