Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-0100-1111-0100 pattern in any orientation.
A147036
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-0100-1111-0100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =57a(9) =101a(10) =643a(11) =1213a(12) =11025a(13) =24069a(14) =404103a(15) =1045647a(16) =63992333a(17) =202749207a(18) =15427634943a(19) =58155611415
External references
- oeis: A147036