65657

Properties

Appears in sequences

• Associated Mersenne numbers.at n=29A001351
• Discriminants of totally real quintic fields.at n=4A023683
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 46.at n=4A031634
• Least prime in A031938 (lesser of primes differing by 20) whose distance to the next 20-twin is 6*n.at n=18A052359
• a(1) = 1, a(2) = 2, a(3) = 3, a(n+3) = a(n) + a(n+1).at n=38A084338
• Largest prime p such that the sum of n consecutive primes plus p is equal to (n+1)^3.at n=39A100572
• Primes in A103376.at n=15A103386
• Primes in A103379.at n=16A103389
• Diagonal sums of Riordan array (1-x-x^2,x(1-x)).at n=42A109266
• Primes p such that there exist primes p'<p"<p"'<p""<p such that the concatenation of any two among the {p,...,p""} is prime.at n=18A139005
• Primes of the form 16n^2 + 121.at n=17A202083
• Primes formed by concatenating k, k, and 7.at n=18A210513
• Primes having only {5, 6, 7} as digits.at n=17A260829
• Primes having only {0, 5, 6, 7} as digits.at n=35A386077
• Primes having only {5, 6, 7, 8} as digits.at n=42A386196
• Prime numbersat n=6559