150151

Properties

Appears in sequences

• Primes formed by concatenating n with n+1.at n=20A030458
• Erroneous version of A134996.at n=13A038136
• Primes of the form 30030*p + 1 where p is a prime.at n=0A051651
• Minimal primorial safe primes: p and primorial*p + 1 are both primes.at n=5A051902
• Primes whose decimal expansion is a concatenation of two or more consecutive increasing numbers (no leading zeros allowed).at n=21A052087
• First member of a prime 5-tuple in a 2p-1 progression.at n=11A057328
• Table read by rows where i-th row consists of primes P of the form P=j*P(i)# -1 or P=j*P(i)# +1 with 0 < j < P(i+1). Here P(r)# = A002110.at n=46A087715
• a(n) is the n-th prime that ends with prime(n), or 0 if there do not exist n primes ending with prime(n).at n=35A089778
• Primes from merging of 6 successive digits in decimal expansion of the Champernowne Constant.at n=28A104949
• Primes starting a Cunningham chain of the second kind of length 5.at n=8A110022
• Smallest primes starting a complete four iterations Cunningham chain of the first or second kind.at n=14A110027
• Primes formed by concatenating k with k+1, where k+1 is a prime.at n=11A134428
• Dihedral calculator primes: p, p upside down, p in a mirror, p upside-down-and-in-a-mirror are all primes.at n=14A134996
• a(n) = 1250*n^2 - 100*n + 1.at n=10A154374
• Primes that are a concatenation of 2*k and 2*k+1 or 2*k and 2*k-1 for some k.at n=37A154530
• Palindromic primes in the sense of A007500 with digits '0', '1' and '5' only.at n=16A199305
• Primes having only {0, 1, 5} as digits.at n=42A199325
• Emirps (A006567) whose difference with the reversal is a perfect square.at n=18A217386
• Primes of the form A060735(k) +- 1, where A060735 lists multiples of primorials (A002110) less than the next larger primorial.at n=45A257658
• Primes of the form p==3 (mod 4) such that the average of their primitive roots equals p/2.at n=23A267010