129959

Properties

Appears in sequences

• Primes of the form 10*k^2 - 1.at n=19A143828
• Primes of the form p^2 +3p + 1, where p is also a prime.at n=28A165944
• Primes of form n^4 - n^2 - 1.at n=10A174822
• SanD-68 primes p: such that p+d is also prime and sum of digits A007953(p(p+d)) = d, with d = 68.at n=17A307474
• Emirps that can be written as p*q+p+q where p and q are emirps.at n=35A352249
• Prime numbersat n=12157