194750

Appears in sequences

• Number of intersection points outside the n-gon of all lines through pairs of vertices of a regular n-gon.at n=38A146213
• Even numbers k such that the sum of divisors of k in Gaussian integers is a real number.at n=7A332532
• Number of polygons formed outside a regular n-gon when every pair of vertices of the n-gon are joined by an infinite line.at n=40A344311