A184151 - OEIS

A184151

1/4 the number of (n+1)X8 0..3 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically

%I #4 Mar 31 2012 12:35:56

%S 97806031,783273204631,6038729388705523,46821946289531019895,

%T 362749037617728870936121,2810726734347901488302111479

%N 1/4 the number of (n+1)X8 0..3 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically

%C Column 7 of A184153

%e Some solutions for 3X8 with a(1,1)=0

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 09 2011