Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111-0010 pattern in any orientation.
A146627
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =17a(7) =21a(8) =573a(9) =1143a(10) =12133a(11) =30945a(12) =812099a(13) =2463251a(14) =205843047a(15) =793610117a(16) =114751333899a(17) =550658503225
External references
- oeis: A146627