24071

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 9x + 2.at n=16A023324
• Numbers k such that k^2 and k^3 have the same set of digits.at n=31A029797
• Numbers k such that (12^k + 1)/13 is a prime.at n=8A057178
• Numbers n such that (23^n+1)/24 is a prime.at n=6A057189
• Number of isomers of polyhex hydrocarbons with C_(2h) symmetry with eighteen hexagons.at n=10A120371
• a(n) = pq + pr + qr with p = prime(n), q = prime(n+1), and r = prime(n+2).at n=22A127345
• Primes in A127345.at n=10A127346
• Primes congruent to 58 mod 59.at n=36A142785
• Primes such that applying "reverse and add" twice produces two more primes.at n=8A174402
• Primes p such that if q is the next prime after p then the concatenation of p with q and the concatenation of q with p are both primes.at n=37A225575
• Prime(n), where n is such that (1+sum_{i=1..n} prime(i)^14) / n is an integer.at n=27A233043
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 3 6 or 7.at n=29A252295
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 3 6 or 7.at n=34A252295
• a(n) = least m > 1 such that m + (prime(n)#)^n is prime.at n=49A263925
• Primes of the form abs(3n^3 - 183n^2 + 3318n - 18757) in order of increasing nonnegative n.at n=43A272401
• a(n) is the smallest prime p such that there is a multiplicative subgroup H of Z/pZ, of odd order and of index 2n, such that for any two cosets H1 and H2 of H, H1 + H2 contains all of (Z/pZ)\0, except that H+H contains all of (Z/pZ)\0 except -H. If no such prime exists, a(n) = 0.at n=28A294615
• Denominator of harmonic mean of 3 consecutive primes. Numerators are A331259.at n=22A331260
• Square array read by antidiagonals upwards: T(n,k) for integer k >= 0 is the n-th prime p such that p^(2*3^k) + p^(3^k) + 1 is prime.at n=54A344448
• Primes p such that p + 6, p + 12, p + 20, p + 26 and p + 32 are also primes.at n=14A384769
• Prime numbersat n=2677