Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 01000-11100-00111-00010 pattern in any orientation.
A147334
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 01000-11100-00111-00010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =3a(7) =9a(8) =19a(9) =45a(10) =171a(11) =735a(12) =3657a(13) =20047a(14) =135531
External references
- oeis: A147334