55331

Properties

Appears in sequences

• Prime quadruples: numbers k such that k, k+2, k+6, k+8 are all prime.at n=26A007530
• Initial members p of prime 5-tuples (p, p+2, p+6, p+8, p+12).at n=9A022006
• Primes at which difference pattern X2424Y (X and Y >= 6) occurs in A001223.at n=3A052167
• Prime numbers with odd digits in descending order.at n=35A061245
• Primes with all odd digits such that the next three primes also contain all odd digits.at n=37A068831
• List of Ormiston prime pairs.at n=35A072274
• Primes p such that three (the maximum number) primes occur between p and p+12.at n=18A086140
• Primes p such that p + 2, p + 6, and the concatenation p (p+2) (p+6) is prime.at n=14A174858
• a(1) = 1, a(n+1) = least prime p > a(n) such that a(n) + p is a square.at n=25A178825
• Primes p such that the polynomial x^2 + x + p generates only primes for x = 0, ..., 4.at n=28A187057
• Initial primes in prime 5-tuples (p, p+2, p+6, p+8, p+12) preceding the maximal gaps in A201073.at n=5A201074
• Prime numbers p such that x^2 + x + p produces primes for x = 0..4 but not x = 5.at n=16A210363
• First of four consecutive primes p,q,r,s such that (2*p+q)/5 and (r+2*s)/5 are prime.at n=4A358149
• Prime numbersat n=5618