Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1110-0110-0111 pattern in any orientation.
A147504
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1110-0110-0111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =5a(6) =21a(7) =83a(8) =317a(9) =1047a(10) =4695a(11) =28979a(12) =194029a(13) =1669287a(14) =18050319
External references
- oeis: A147504