70241

Properties

Appears in sequences

• Primes equal to the sum of the first k primes for some k.at n=20A013918
• Records in A111267.at n=31A111268
• Sum of primes < n^2.at n=31A139562
• Primes where the first digit equals the sum of all the other digits.at n=41A156307
• a(n) = 1 - 2*n^2 + 4*n*(1 + 2*n^2)/3.at n=30A168547
• Primes of the form n^2 + 16.at n=38A243451
• Numbers k such that (197*10^k - 11)/3 is prime.at n=20A294378
• Primes that are the first in a run of exactly 4 emirps.at n=21A346024
• Prime numbersat n=6963