Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111-0100 pattern in any orientation.
A146635
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111-0100 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) =12157a(11) =30947a(12) =815741a(13) =2476195a(14) =202594803a(15) =779485843a(16) =111542186257a(17) =533921262483
External references
- oeis: A146635