25357

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 95.at n=19A020434
• Primes p for which the period of reciprocal 1/p is (p-1)/12.at n=31A056217
• Prime-indexed primes (PIPs) whose digits are all primes.at n=9A087368
• Primes with at least one of each prime digit.at n=14A108419
• Primes with prime number of only prime digits (i.e., 2, 3, 5, 7).at n=34A124888
• Numbers such that all subsets of {a(1)^2,...,a(n)^2} have a different sum.at n=28A138857
• Primes with a prime number of digits and using all of the prime digits 2, 3, 5, 7 at least once and no other digits.at n=6A153770
• Primes p such that both pi(p) and the concatenation of pi(p) and p are prime, where pi is the prime counting function.at n=38A155032
• Least prime p == -1 (mod n) that divides Fibonacci((p+1)/n), or 0 if no such prime exists.at n=30A168172
• Primes of the form 6n^2 + 7.at n=26A201601
• Primes p = prime(n): such that p.n and n.p both are prime, where (.) indicates concatenation.at n=36A243886
• Primes p such that 2*p + 1 is abundant.at n=30A267476
• Primes p such that 2*p+1 is divisible by the sum of digits of p+1.at n=39A267542
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 145", based on the 5-celled von Neumann neighborhood.at n=34A270288
• Prime-indexed primes q such that prime(q)-q-1 is a prime indexed prime.at n=14A318751
• Number of vertices formed in a square by straight line segments when connecting the n+1 points along each edge that divide it into n equal parts to the n+1 points on the edge on the opposite side of the square.at n=11A355839
• Number of "peerless" trees on n nodes.at n=18A383447
• Prime numbersat n=2797