cp's OEIS Frontend

A266209 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal, vertical, diagonal or antidiagonal neighbor equal to 4-1.

%I A266209 #6 Aug 12 2016 06:53:59
%S A266209 8,8,8,16,312,14936,310552,8027264,153019144,3430340488,64644807000,
%T A266209 1348807023952,25490020592680,512739267856872,9742558843713512,
%U A266209 192399460839867616,3675912909241399304,71947890449406450248
%N A266209 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any horizontal, vertical, diagonal or antidiagonal neighbor equal to 4-1.
%C A266209 Row 4 of A266208.
%H A266209 R. H. Hardin, <a href="/A266209/b266209.txt">Table of n, a(n) for n = 1..21</a>
%e A266209 Some solutions for n=6
%e A266209 ..1..1..3..3..2..3....2..2..0..1..3..3....0..0..1..3..2..3....3..2..0..1..3..2
%e A266209 ..0..1..1..3..2..2....2..2..0..1..3..3....0..0..1..3..2..2....3..2..0..1..3..3
%e A266209 ..0..0..1..3..2..0....2..2..0..1..3..1....0..1..1..3..2..3....2..2..0..1..1..3
%e A266209 ..2..0..1..3..2..0....0..0..0..1..1..3....1..0..1..3..2..2....0..2..0..0..1..1
%Y A266209 Cf. A266208.
%K A266209 nonn
%O A266209 1,1
%A A266209 _R. H. Hardin_, Dec 23 2015