50379

Appears in sequences

• Indices of primes at which the prime race 4k-1 vs. 4k+1 is tied.at n=14A038691
• Numbers k such that k*(k+1)-1 and k*(k+1)+1 are twin primes and k*(k+3)-1 and k*(k+3)+1 are also twin primes.at n=23A138303
• Least number having n orderless representations as p^2 + q^2 + r^2, where p, q, and r are primes.at n=25A214512
• The number of vertices on a concave circular triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.at n=18A340686