Number of n X 3 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
A280064
Number of n X 3 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =15a(4) =39a(5) =104a(6) =281a(7) =771a(8) =2122a(9) =5858a(10) =16174a(11) =44694a(12) =123510a(13) =341403a(14) =943694a(15) =2608709a(16) =7211359a(17) =19935055a(18) =55108220a(19) =152341402a(20) =421132682a(21) =1164181573a(22) =3218268552a(23) =8896600238a(24) =24593808939a(25) =67987267220a(26) =187944382019a(27) =519554527901
External references
- oeis: A280064