149497

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 4x + 9.at n=31A023312
• Prime numbers k such that (2^k + 3^k)/5 is prime.at n=10A057469
• The number of regions inside a Reuleaux triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=14A340639
• Prime numbersat n=13806