login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

1/8192 the number of (n+2)X5 0..3 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace
1

%I #5 Mar 31 2012 12:36:05

%S 2972,1279862,177942264,31976088817,5253540132125,891778365437358,

%T 149628929202973235,25212444270769802733,4241667400028024496621,

%U 714009811534975107167492,120166248667449739439413727

%N 1/8192 the number of (n+2)X5 0..3 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace

%C Column 3 of A186553

%H R. H. Hardin, <a href="/A186549/b186549.txt">Table of n, a(n) for n = 1..199</a>

%e Some solutions for 4X5

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 23 2011