8042479

Appears in sequences

• a(n) is the least nonsquare having square residues modulo each of the first n primes.at n=21A090983
• a(n) is the least nonsquare having square residues modulo each of the first n primes.at n=22A090983
• a(n) is the least number k that is not a quadratic residue modulo prime(n) but is a quadratic residue modulo all previous primes.at n=22A377212