68702699520
domain: N
Appears in sequences
- a(n) = 4^n * (2^n - 1).at n=12A059409
- Number of ternary Lyndon words with exactly five 1's.at n=23A124723
- Sum of neighbor maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal and antidiagonal neighbors in a random 0..2 nX4 array.at n=8A222383
- Sum of neighbor maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal and antidiagonal neighbors in a random 0..3 nX4 array.at n=8A222932
- a(n) = 2^n - 2^floor(2n/3).at n=36A291779
- The base-2 logarithm of this sequence equals the Q statistic value of the greedy-from-the-bottom tree with n leaves, which is the minimal Q statistic value for n.at n=20A386912