A237006 - OEIS

%I #4 Feb 02 2014 07:41:19

%S 3518120,760932408,158569999540,52079122983140,14586236067453980,

%T 4486536180370819012,1315103087284839785936,396130483326502441996992,

%U 117485801067262213494961960,35162370620635662915429252644

%N Number of (n+1)X(7+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal

%C Column 7 of A237007

%H R. H. Hardin, <a href="/A237006/b237006.txt">Table of n, a(n) for n = 1..22</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 02 2014