# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a147437 Showing 1-1 of 1 %I A147437 #4 Mar 31 2012 12:35:17 %S A147437 1,1,1,1,5,1,19,11,496,277,13622,3725,625566,100329,46290886,7689337 %N A147437 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111-1010 pattern in any orientation. %e A147437 Maximal 8 X 8 example %e A147437 .0.0.0.0.0.0.0.0 %e A147437 .0.0.0.0.0.0.0.0 %e A147437 .0.0.0.0.0.0.0.0 %e A147437 .0.0.0.0.0.0.0.0 %e A147437 .0.1.0.0.0.0.1.0 %e A147437 .1.1.1.0.0.1.1.1 %e A147437 .0.1.0.0.0.0.1.0 %e A147437 .1.1.1.0.0.1.1.1 %K A147437 nonn %O A147437 1,5 %A A147437 _R. H. Hardin_ # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE