Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11101-10111 pattern in any orientation.
A147490
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11101-10111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =5a(6) =13a(7) =17a(8) =35a(9) =51a(10) =1825a(11) =3971a(12) =48723a(13) =116645a(14) =1517741a(15) =3942921a(16) =214672131a(17) =697172557a(18) =31731412817a(19) =118373336977
External references
- oeis: A147490