Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a zee 1,1 1,2 2,2 2,3 in any orientation.
A145953
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a zee 1,1 1,2 2,2 2,3 in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =7a(5) =11a(6) =159a(7) =327a(8) =5133a(9) =13861a(10) =849385a(11) =3108015a(12) =457381857a(13) =2235253839a(14) =607242639437
External references
- oeis: A145953