A187436 - OEIS

%I #5 Mar 31 2012 12:36:08

%S 44195,6858445,1070374436,167339492229,26149356865336,

%T 4086873166309438,638715674028172903,99822247953081225350,

%U 15600784723214037939595,2438179545769314063666737,381052572245918940155221097

%N Number of (n+1)X5 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors

%C Column 4 of A187441

%H R. H. Hardin, <a href="/A187436/b187436.txt">Table of n, a(n) for n = 1..109</a>

%e Some solutions for 3X5

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 10 2011