749742

Appears in sequences

• Number of chiral pairs of color patterns (set partitions) in a cycle of length n using 6 or fewer colors (subsets).at n=12A320746
• Place n equally spaced points around the circumference of a circle and then, for each pair of points, draw two distinct circles, whose radii are the same as the first circle, such that both points lie on their circumferences. The sequence gives the total number of (curved) edges formed.at n=41A371375