Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111 pattern in any orientation.
A146422
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1010-1111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =9a(5) =13a(6) =35a(7) =63a(8) =2283a(9) =5585a(10) =180293a(11) =562375a(12) =23209995a(13) =88508965a(14) =13019468881a(15) =63861201843
External references
- oeis: A146422