139313

Properties

Appears in sequences

• Smallest nontrivial extension of n-th palindromic prime which is a prime.at n=30A030680
• G.f.: exp( Sum_{n>=1} x^n/n * Product_{d|n} (1 + d*x^n)^d ).at n=27A205482
• a(n) is the first prime p such that, if q is the next prime, (p*q+p+q)/5^n is a prime.at n=4A358482
• Prime numbersat n=12949