|
%I #4 Mar 15 2013 05:28:50
%S 2,64,1154,33604,622568,18539512,354680696,10596201904,206498940320,
%T 6177157242496,121870726469408,3647201710914880,72609560768633600,
%U 2173014662504367232,43562628977274881408,1303500230968158953728
%N Number of nX3 0..2 arrays with no more than floor(nX3/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order
%C Column 3 of A223126
%H R. H. Hardin, <a href="/A223121/b223121.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..1..0....0..1..2....0..1..0....0..1..2....0..1..2....0..1..0....0..1..2
%e ..0..0..2....0..1..1....0..2..1....2..1..1....2..1..1....0..2..1....0..2..1
%e ..2..0..2....1..1..2....0..2..0....2..1..1....2..2..0....0..2..2....0..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 15 2013
| 