Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10000-11111-10000 pattern in any orientation.
A147076
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10000-11111-10000 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =19a(7) =9a(8) =139a(9) =27a(10) =2920a(11) =1117a(12) =150482a(13) =41401a(14) =10982835a(15) =1602485a(16) =1208797417a(17) =157953713a(18) =292923653699a(19) =29971826239
External references
- oeis: A147076