61223

Properties

Appears in sequences

• Numerators of continued fraction convergents to sqrt(510).at n=9A041974
• Primes p(k) such that the product of digits of p(k) equals the product of digits of k.at n=33A066521
• Conjectured values of a(n) defined by: a(n) = first prime appearing in the orbit n, f(n), f(f(n)),...., if it exists; = 0 otherwise, where f(n) = n + sigma(n).at n=19A067579
• Beginning with 2 the smallest prime greater than the previous term such that the difference of successive terms is a distinct square.at n=19A084710
• a(0) = a(1) = a(2) = 1, a(n) = largest prime <= a(n-1) + a(n-2) + a(n-3).at n=20A126273
• Smallest prime q such that, starting with q, there are prime(n)-1 consecutive primes = {1..prime(n)-1} modulo prime(n).at n=3A206333
• Primes p such that six consecutive primes starting with p are congruent to {1,2,3,4,5,6} (mod 7).at n=0A215599
• Prime(n), where n is such that (1+sum_{i=1..n} prime(i)) / n is an integer.at n=11A233523
• Primes in A338529/2.at n=32A338533
• First of four consecutive primes p,q,r,s such that the sum of numerator and denominator of p/q + q/r, p/q + r/s, and q/r + r/s, are all prime.at n=19A355696
• Prime numbersat n=6162