A230336 - OEIS

A230336

Number of nX7 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero

%I #4 Oct 16 2013 06:41:29

%S 0,56010,46237080,47762574418,49266883333526,50711260887195062,

%T 52211092034409972862,53754780288394583334632,

%U 55344031582184062528770162,56980280720646281897172731146,58664905061647640259968339176114

%N Number of nX7 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero

%C Column 7 of A230337

%H R. H. Hardin, <a href="/A230336/b230336.txt">Table of n, a(n) for n = 1..75</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_, Oct 16 2013