Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1001-1111 pattern in any orientation.
A147132
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1000-1001-1111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =17a(7) =21a(8) =513a(9) =983a(10) =10393a(11) =25501a(12) =371965a(13) =1045185a(14) =45350635a(15) =151885957a(16) =15301404559a(17) =63656571009
External references
- oeis: A147132