Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 111-110-111 pattern in any orientation.
A146281
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 111-110-111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =7a(5) =1a(6) =67a(7) =73a(8) =795a(9) =747a(10) =59843a(11) =10661a(12) =2722871a(13) =192335a(14) =266731999a(15) =104050525a(16) =63050333629a(17) =28433577797
External references
- oeis: A146281