Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1000-1111-0100 pattern in any orientation.
A147116
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1000-1111-0100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =1a(8) =191a(9) =363a(10) =3347a(11) =7833a(12) =101483a(13) =265285a(14) =7333831a(15) =22771931a(16) =2267436695a(17) =8799931143
External references
- oeis: A147116