38611

Properties

Appears in sequences

• Primes of the form p^2 - p - 1, where p is prime.at n=18A091568
• Primes of the form p^k - p^(k-1) - 1, with p prime and k>1.at n=31A122395
• Prime numbers p such that p +- ((p-1)/3) are primes.at n=35A137703
• Primes of form n^4 + n^2 - 1.at n=7A174819
• Least number k>1 such that (tau(k-1)+tau(k+1))/tau(k) = n where tau = A000005.at n=40A190644
• Primes of the form 2*n^3 + 5*n^2 + 3*n + 1.at n=12A196153
• Centered 18-gonal (or octadecagonal) primes.at n=27A264825
• Hyperartiads.at n=37A270798
• Primes for which the concatenation of the digits in the even positions and the concatenation of the digits in the odd positions are squares.at n=35A275797
• Primes such that moving the last digit to the front produces a triangular number.at n=10A384954
• Prime numbersat n=4068