30557

Properties

Appears in sequences

• Prime(prime(n)) when prime(prime(n)) and n are twin primes.at n=21A087394
• Prime numbers p such that primepi(p) + p is a square.at n=21A104269
• Lesser of consecutive primes whose sum is a palindromic number.at n=33A242386
• Strong (2,3,5)-primes (see comments).at n=23A262727
• Emirp-indexed emirps: emirps with emirp subscripts.at n=26A326442
• Lesser of twin primes (A001359) being both half-period primes (A097443).at n=29A347225
• Emirps p such that R(p) > p and R(p) mod p is prime, where R(p) is the reversal of p.at n=42A356791
• Expansion of 1/sqrt((1 - x^2 - x^5)^2 - 4*x^7).at n=31A376783
• Primes having only {0, 3, 5, 7} as digits.at n=43A386062
• Prime numbersat n=3299