92569

Properties

Appears in sequences

• Numbers whose least quadratic nonresidue (A020649) is 23.at n=9A025028
• Primes with 31 as smallest positive primitive root.at n=10A061735
• Consider the mapping f(a/b) = (a^3 +b^3)/(a^2+b^2). Taking a =1, b = 2 to start with and carrying out this mapping repeatedly on each new (reduced) rational number gives the following sequence 1/2,9/5,427/53,39001680/92569,... Sequence contains the denominators.at n=3A081482
• Odd numbers k for which 23 is the smallest positive i with Jacobi symbol J(i,k) != 1.at n=16A112079
• Noncomposite numbers in the western ray of the Ulam spiral as oriented on the March 1964 cover of Scientific American.at n=23A168025
• Primes of the form 7n^2 - 6.at n=11A201852
• Primes p such that the maximal length of a Buchi sequence in Z/pZ is less than the value of A124882 for that prime.at n=10A261404
• Numbers that are both prime-indexed primes and lucky-indexed lucky numbers.at n=29A307008
• a(n) = Sum_{k=0..floor(n/2)} binomial(k+2,4*n-8*k+2).at n=36A390222
• Prime-indexed primes that are the average of the preceding and following prime-indexed primes.at n=9A391116
• a(n) = Sum_{k=0..floor(3*n/8)} binomial(k,3*n-8*k).at n=54A392272
• Prime numbersat n=8941