A231695 - OEIS

%I #4 Nov 12 2013 13:36:10

%S 16,272,5972,115583,2049855,37872601,711067486,13223846355,

%T 245394073602,4563802124823,84893857186798,1578413939501222,

%U 29347570955255809,545714251340861077,10147343140331608494,188682437852956208517

%N Number of nX3 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors

%C Column 3 of A231700

%H R. H. Hardin, <a href="/A231695/b231695.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..1..0..0....1..0..3....1..0..0....0..0..2....0..0..1....0..1..2....1..2..1

%e ..1..0..1....0..0..0....0..0..3....0..2..3....0..0..1....0..0..2....1..0..0

%e ..3..0..0....1..2..0....0..2..0....0..0..1....0..2..2....0..0..2....0..0..3

%e ..0..0..1....2..1..0....0..0..0....0..0..3....3..3..3....0..3..2....0..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 12 2013