Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 01010-11111-00100 pattern in any orientation.
A147347
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 01010-11111-00100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =7a(5) =1a(6) =25a(7) =9a(8) =149a(9) =33a(10) =5089a(11) =931a(12) =204509a(13) =26325a(14) =14205068a(15) =1129487a(16) =2130205171a(17) =121812575a(18) =553442984916a(19) =24953439069
External references
- oeis: A147347