Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-0111-0010 pattern in any orientation.
A146456
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1100-0111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =11a(6) =31a(7) =113a(8) =699a(9) =5221a(10) =45431a(11) =522967a(12) =8016431a(13) =151899461a(14) =3697922071a(15) =116129380717
External references
- oeis: A146456