Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1001-1111-0110 pattern in any orientation.
A147416
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1001-1111-0110 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =9a(7) =20a(8) =53a(9) =192a(10) =789a(11) =4160a(12) =25089a(13) =166861a(14) =1330315a(15) =12854522
External references
- oeis: A147416