cp's OEIS Frontend

A198912 Number of n X 6 0..7 arrays with values 0..7 introduced in row major order and no element equal to any horizontal or vertical neighbor.

%I A198912 #7 Mar 12 2023 14:18:27
%S A198912 52,313132,13088156547,769126451071174,46891073386615240710,
%T A198912 2869765342757082981876352,175702802690666247458883923440,
%U A198912 10757955551509190096324218697545253,658692627650592744502193427291859810016,40330729100674101491606403206098933746439983
%N A198912 Number of n X 6 0..7 arrays with values 0..7 introduced in row major order and no element equal to any horizontal or vertical neighbor.
%H A198912 Andrew Howroyd, <a href="/A198912/b198912.txt">Table of n, a(n) for n = 1..200</a>
%e A198912 Some solutions with values 0 to 7 for n=3
%e A198912 ..0..1..0..2..3..4....0..1..0..2..3..4....0..1..2..1..3..2....0..1..2..1..3..1
%e A198912 ..1..0..1..5..0..6....1..0..2..5..4..0....1..0..1..4..5..6....1..0..1..0..1..0
%e A198912 ..0..1..4..7..6..7....0..1..5..0..6..7....0..1..0..7..3..0....0..1..4..5..6..7
%Y A198912 Column 6 of A198914.
%K A198912 nonn
%O A198912 1,1
%A A198912 _R. H. Hardin_, Oct 31 2011
%E A198912 Terms a(7) and beyond from _Andrew Howroyd_, Mar 12 2023