Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 101-111-010 pattern in any orientation.
A146217
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 101-111-010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =7a(5) =1a(6) =112a(7) =79a(8) =2558a(9) =1063a(10) =209802a(11) =27065a(12) =20175581a(13) =2447221a(14) =6126604790a(15) =890042930a(17) =407961935451
External references
- oeis: A146217