49957

Properties

Appears in sequences

• Number of 4-regular polyhedra with n nodes.at n=19A007022
• Primes for which only three iterations of 'Prime plus its digit sum equals a prime' are possible.at n=11A048525
• Numbers k such that 64^k - 63^k is prime.at n=8A062630
• a(n) is the least k such that the generalized Fermat number (k+1)^(2^n) + k^(2^n) is prime.at n=15A080208
• prime(k) for those k where floor((2*(prime(k+1)-prime(k))*PrimePi(k) mod (8*k))/k) = m with m = 9.at n=39A109563
• Primes p such that q-p = 34, where q is the next prime after p.at n=15A134116
• Minimum value unattainable as the sum of 2 attained values of a*b*c with a,b,c 0..n integers.at n=35A225264
• Primes p of the form p^2 + q + 1 where p < q are consecutive primes.at n=8A242230
• Lexicographically largest increasing sequence of primes for which the continued square root map (see A257574) produces the decimal expansion of e (Euler's number).at n=31A257764
• Prime numbersat n=5130