117719

Appears in sequences

• Numerators b(n) of Pythagorean approximations b(n)/a(n) to 3/2.at n=4A195551
• Denominators a(n) of Pythagorean approximations b(n)/a(n) to 2/3.at n=7A195559
• Numbers k such that (85*10^k + 473)/9 is prime.at n=25A283513
• Number of intersection points formed by drawing the line segments connecting any two lattice points of an n X m convex lattice polygon written as triangle T(n,m), n >= 1, 1 <= m <= n.at n=41A288180