676506624

Appears in sequences

• Number of permutations of length 2*n-1 with no local maxima in even positions.at n=6A113583
• Number of permutations of [1..n] which achieve the worse case bound for a graph domination problem.at n=13A272640
• Number of 2-color vertex orderings of the labeled path graph on n vertices in which the number 1 is assigned to a vertex in an odd position.at n=12A360514