24527

Properties

Appears in sequences

• Primes p from A031924 such that A052180(primepi(p)) = 19.at n=19A052235
• Primes p such that (p-1)/2 and (p-3)/4 are also prime.at n=33A066179
• Primes of the form 16*k-1 such that 4*k-1 and 8*k-1 are also primes.at n=17A101793
• Prime numbers p such that p^3 - (p+1)^2 and p^3 + (p+1)^2 are both primes.at n=27A137476
• Numbers of pattern-matching permutations of (1324) for the permutations of {1, 2, ..., n} on n = 4, 5, 6, ... elements.at n=4A158009
• Primes p = prime(n): such that p.n and n.p both are prime, where (.) indicates concatenation.at n=35A243886
• Denominators of r-Egyptian fraction expansion for sqrt(3) - 1, where r(k) = 1/Prime(k).at n=5A270479
• Numbers m such that Conv(b,m) = b has a unique nontrivial solution (b = 0 and b = 1 are considered trivial solutions). Here, Conv(b,m) denotes the limit of b^^t (mod m) as t goes to infinity.at n=21A347561
• Primes having only {2, 4, 5, 7} as digits.at n=37A386153
• Prime numbersat n=2721