Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-0100-1111-0100 pattern in any orientation.
A147042
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 0100-0100-1111-0100 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =13a(7) =39a(8) =151a(9) =607a(10) =2057a(11) =13855a(12) =94157a(13) =812183a(14) =7313331a(15) =95388939a(16) =1173110437
External references
- oeis: A147042