Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11011-01110-00100 pattern in any orientation.
A147482
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11011-01110-00100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =7a(5) =1a(6) =32a(7) =9a(8) =247a(9) =55a(10) =7527a(11) =1429a(12) =368384a(13) =45879a(14) =31665405a(15) =2855306a(16) =5088454688a(17) =352337351a(19) =84647830613
External references
- oeis: A147482