49009

Properties

Appears in sequences

• Numbers whose least quadratic nonresidue (A020649) is 19.at n=17A025027
• Odd numbers n for which 19 is the smallest i (>= 1) with Jacobi symbol J(i,n) getting either a value 0 or -1.at n=29A112078
• primes of the form 5n^2 + 4.at n=5A201483
• Primes of the form 10n^2 + 9.at n=13A201711
• Sum of the largest parts in the partitions of 3n into 3 parts.at n=32A236370
• Third prime p such that (p+n)^2+n is prime but (p+j)^2+j is not prime for all 0<j<n.at n=25A238675
• Sum of the largest parts in the partitions of 4n into 4 parts with smallest part = 1.at n=24A240711
• Primes p such that the maximal length of a nontrivial N(p)-Hensley sequence mod p is less than the value of A124882 for that prime, where N(p) is the least positive quadratic non-residue mod p.at n=22A261405
• Numbers k such that 10^(k-1) - pi(k) is prime.at n=5A261620
• Value of prime number D for incrementally largest values of minimal x satisfying the equation x^2 - D*y^2 = -5.at n=34A341083
• Value of prime number D for incrementally largest values of minimal y satisfying the equation x^2 - D*y^2 = -5.at n=33A341085
• Primes having only {0, 4, 9} as digits.at n=16A385768
• Primes having only {0, 4, 5, 9} as digits.at n=34A386071
• Primes having only {0, 4, 6, 9} as digits.at n=29A386073
• Primes having only {0, 4, 8, 9} as digits.at n=32A386076
• Prime numbersat n=5037