login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Number of nX6 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero
1

%I #4 Oct 13 2013 16:27:28

%S 0,522,64838,15075834,2905031942,575915716590,113395635811566,

%T 22307089878854146,4393204701131698706,865095876749918611674,

%U 170331251165790970494850,33537951155031500480807238

%N Number of nX6 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero

%C Column 6 of A230250

%H R. H. Hardin, <a href="/A230249/b230249.txt">Table of n, a(n) for n = 1..14</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 13 2013