Number of n X n binary arrays symmetric about main diagonal with all ones connected only in an em 1,1 1,2 2,2 2,3 3,3 in any orientation.
A146147
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in an em 1,1 1,2 2,2 2,3 3,3 in any orientation.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =7a(4) =17a(5) =57a(6) =295a(7) =1823a(8) =12191a(9) =109351a(10) =1406131a(11) =21111023a(12) =390067193a(13) =9744306045a(14) =307351023911
External references
- oeis: A146147