86027

Properties

Appears in sequences

• Number of pairs of twin primes whose smaller element is <= 10^n-th prime.at n=5A049035
• Number of pairs of twin primes <= 10^n-th prime.at n=5A093683
• Primes p such that p + 2, 18*p^2 + 1, and 18*(p+2)^2 + 1 are all primes.at n=26A115272
• Lesser of twin primes p such that 6*p+1 is greater of twin primes.at n=25A176131
• Primes equal to a centered pentagonal number plus 1.at n=32A285810
• Numbers k such that (20^k + 19^k)/39 is prime.at n=5A389264
• Prime numbersat n=8365