67560

Appears in sequences

• Doubles (index 2+) under "BGJ" (reversible, element, labeled) transform.at n=5A032057
• Number of step cyclic shifted sequences using exactly two different symbols.at n=24A056415
• Number of binary rooted trees with n nodes and internal path length n.at n=52A108643
• Numbers k such that k divides 1 + Sum_{j=1..k} prime(j)^5 = 1 + A122103(k).at n=20A128169
• a(n) = 169*n^2 - 2*n.at n=19A158218
• Number of n X 1 0..2 arrays with every repeated value in every row and column greater than the previous repeated value.at n=11A267960