Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1111-0100 pattern in any orientation.
A146406
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1111-0100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =17a(7) =21a(8) =669a(9) =1435a(10) =18911a(11) =48821a(12) =1583279a(13) =5119381a(14) =552048095a(15) =2284826569a(16) =405071372171
External references
- oeis: A146406