Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1010-1111-0010 pattern in any orientation.
A146629
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1010-1111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =7a(6) =21a(7) =47a(8) =215a(9) =1109a(10) =8005a(11) =71755a(12) =717641a(13) =8603611a(14) =133533027a(15) =2609017895a(16) =64328667073
External references
- oeis: A146629