Half the number of n X n symmetric binary matrices with no element unequal to a strict majority of its king- and knight-move neighbors.
A190659
Half the number of n X n symmetric binary matrices with no element unequal to a strict majority of its king- and knight-move neighbors.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =3a(5) =8a(6) =20a(7) =53a(8) =141a(9) =552a(10) =2419a(11) =12788a(12) =78700a(13) =561036a(14) =4750312
External references
- oeis: A190659