Number of 3 X n 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.
A208710
Number of 3 X n 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors.
Terms
- a(0) =4a(1) =32a(2) =196a(3) =1268a(4) =8128a(5) =52184a(6) =334948a(7) =2149988a(8) =13800400a(9) =88582472a(10) =568596052a(11) =3649722932a(12) =23426960800a(13) =150373741496a(14) =965223885508
External references
- oeis: A208710