Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 00100-00100-11111 pattern in any orientation.
A147001
Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 00100-00100-11111 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =4a(7) =5a(8) =13a(9) =19a(10) =43a(11) =57a(12) =239a(13) =521a(14) =2347a(15) =5442a(16) =24758a(17) =63173a(18) =355006a(19) =1139569a(20) =7776109a(21) =29105899a(22) =223723640a(23) =955226817a(24) =8533424348
External references
- oeis: A147001