68879

Properties

Appears in sequences

• Primes with digit sum = 38.at n=11A106772
• Primes of the form k^3 - k - 1.at n=18A116581
• a(n) = n^3 - n - 1.at n=40A126420
• a(n) = smallest prime of the form n*(n+1)*(n+2)...(n+k-1) - 1, or zero if no such a prime exists.at n=39A172125
• List of primes p1 such that (p1,p2) are twin primes where both 2*p1+p2 and p1+2*p2 are primes.at n=23A174920
• Numerator of h(n+5) - h(n) where h(n) = Sum_{k=1..n} (1/k) are the Harmonic numbers.at n=14A189998
• Primes of the form 42*k^3 + 270*k^2 - 26436*k + 250703 in order of increasing k.at n=16A271144
• Primes of the form (k - 1) * k * (k + 1) +- 1, k >= 1.at n=34A293861
• Prime numbersat n=6843