Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 10000-11111-00001 pattern in any orientation.
A147074
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 10000-11111-00001 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =9a(6) =25a(7) =39a(8) =151a(9) =463a(10) =2967a(11) =12351a(12) =101811a(13) =497317a(14) =5967627a(15) =41101207a(16) =709472803
External references
- oeis: A147074