A222650 - OEIS

%I #5 Feb 27 2013 16:50:34

%S 1,1,2,11,34,131,438,2150,7676,32491,116096,533186,1945184,8362152,

%T 30561808,135650378,501075616,2155759835,7986345032,34780282521,

%U 129686419290,555913562689,2079094345694,8947148045345,33609869742022

%N Number of nX1 0..3 arrays with no more than floor(nX1/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..3 order

%C Column 1 of A222654

%H R. H. Hardin, <a href="/A222650/b222650.txt">Table of n, a(n) for n = 1..210</a>

%e All solutions for n=3

%e ..0....0

%e ..1....1

%e ..2....0

%K nonn

%O 1,3

%A _R. H. Hardin_ Feb 27 2013