Number of 2 X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
A279978
Number of 2 X n 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =3a(2) =9a(3) =24a(4) =62a(5) =134a(6) =277a(7) =542a(8) =1035a(9) =1930a(10) =3546a(11) =6432a(12) =11555a(13) =20590a(14) =36445a(15) =64140a(16) =112326a(17) =195866a(18) =340241a(19) =589038a(20) =1016671a(21) =1749950a(22) =3004610a(23) =5147092a(24) =8798911a(25) =15012766a(26) =25569393a(27) =43477440a(28) =73814414a(29) =125140142
External references
- oeis: A279978