Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1000-1000-1111 pattern in any orientation.
A146601
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1000-1000-1111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =9a(5) =17a(6) =69a(7) =301a(8) =1753a(9) =10173a(10) =84391a(11) =728377a(12) =10351543a(13) =132350331a(14) =2998203817
External references
- oeis: A146601