Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 3X3 tee 1,1 1,2 1,3 2,2 3,2 in any orientation.
A146007
Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 3X3 tee 1,1 1,2 1,3 2,2 3,2 in any orientation.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =7a(5) =1a(6) =130a(7) =91a(8) =6332a(9) =1793a(10) =406187a(11) =49449a(12) =61263393a(13) =8852445a(14) =32470148409a(15) =4239917884
External references
- oeis: A146007