A186215 - OEIS

A186215

Number of (n+1)X6 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant

%I #4 Mar 31 2012 12:36:05

%S 15055,2008031,116461359,9406230423,660028898887,49524283508081,

%T 3611859394076247

%N Number of (n+1)X6 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant

%C Column 5 of A186218

%e Some solutions for 3X6

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 15 2011