Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-0100-1111 pattern in any orientation.
A146571
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0100-0100-1111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =19a(7) =33a(8) =697a(9) =1417a(10) =19803a(11) =53699a(12) =1477697a(13) =4737663a(14) =455317519a(15) =1851757293a(16) =336261923485
External references
- oeis: A146571