238481

Properties

Appears in sequences

• a(n) = s(n+3)/4, where s is A024949.at n=16A024950
• Number of intersection points of all lines through pairs of vertices of a regular n-gon.at n=37A146212
• Primes of the form n^3+n+91.at n=16A161907
• Primes whose base-6 representation is a square when read in base 10.at n=35A267820
• A146212(2*n).at n=18A347321
• Number of vertices in graph G_n formed by taking a regular n-gon with all its chords extended to infinity (the n-th graph in A344857) and inverting it in its circumscribing circle.at n=37A383461
• Prime numbersat n=21102