43891

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 8x + 5.at n=33A023293
• a(n) = n^5 - (65/6)*n^4 + (173/6)*n^3 + (148/3)*n^2 - (862/3)*n + 265.at n=7A028294
• Primes of the form 2310*p + 1 where p is a prime.at n=3A051649
• Primes of the form 4*k^2 - 10*k + 7 with k positive.at n=33A073337
• Smallest prime which is 1 more than a product of n distinct primes: a(n) is a prime and a(n) - 1 is a squarefree number with n prime factors.at n=6A073918
• Primes arising in A083771.at n=5A083772
• Primes generated from A039726.at n=5A087864
• Number of connected relations.at n=3A092795
• Lexicographically earliest sequence of primes such that a(n) - 1 == 0 (mod a(n - 1) - 1) where a(n) - 1 is a squarefree number; a(1) = 3.at n=5A093441
• Primes of the form 13x^3+x+1.at n=1A114356
• Numbers k such that (8^k - 3^k)/5 is prime.at n=8A128025
• Primes in A005891 = Centered pentagonal numbers: (5n^2 + 5n + 2)/2.at n=21A145838
• Primes of the form (2k)^2 + 3(2k + 1)^2.at n=17A147297
• Primes p such that there are positive integers m and n and a prime q such that p = m^2+m-q = n^2+n+q.at n=32A162652
• Primes of the form ((p-1)/2)^2+((p+1)/2), where p is prime.at n=33A163418
• Primes of the form n^2 + n + 1, where n is semiprime.at n=19A193144
• Primes p at which phi(p-1)/(p-1) reaches a new minimum, where phi is Euler's totient function.at n=6A241196
• Least integer k such that the n-th prime of form m^2+1 divides the composite number k^2+1.at n=36A255675
• Centered 15-gonal (or pentadecagonal) primes.at n=16A264822
• Primes of the form abs(-66n^3 + 3845n^2 - 60897n + 251831) in order of increasing nonnegative n.at n=20A272438