Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 01000-11111-00010 pattern in any orientation.
A147014
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 01000-11111-00010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =5a(7) =13a(8) =31a(9) =111a(10) =377a(11) =1545a(12) =10231a(13) =72633a(14) =559663a(15) =5155711a(16) =55582209a(17) =698619471a(18) =11001973207a(19) =206072905483
External references
- oeis: A147014