Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-1111-1000 pattern in any orientation.
A146715
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1100-1111-1000 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =17a(7) =21a(8) =589a(9) =1201a(10) =14115a(11) =35729a(12) =829417a(13) =2513431a(14) =171871447a(15) =646550497a(16) =84488290479a(17) =394701151631
External references
- oeis: A146715