Half the number of n X n symmetric binary matrices with no element equal to a strict majority of its vertical, antidiagonal and horizontal neighbors.
A190629
Half the number of n X n symmetric binary matrices with no element equal to a strict majority of its vertical, antidiagonal and horizontal neighbors.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =115a(5) =1587a(6) =33283a(7) =1147868a(8) =64664807a(9) =5886944926a(10) =868821662115
External references
- oeis: A190629