30467

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 3x + 10.at n=18A023310
• Primes of the form sum 6d/(2 + mu(d)) for some k and all d dividing k.at n=39A069548
• Number of polyominoes consisting of 7 regular unit n-gons.at n=11A103473
• Primes of the form f(n) = n^6 - 48*n^5 + 908*n^4 - 8603*n^3 + 42796*n^2 - 105410*n + 100823 listed by increasing value of n >= 0.at n=1A117091
• a(n) = (a(n-1) * a(n-5) + a(n-2) * a(n-4) + a(n-3)^2) / a(n-6), a(0) = a(1) = a(2) = a(3) = 1, a(4) = a(5) = 2.at n=13A227999
• Primes p such that p+2, p+24 and p+246 are also primes.at n=30A235871
• Initial members of prime quadruples (n, n+2, n+24, n+26).at n=26A245568
• Lesser of twin primes p, p+2 such that prime(p) and prime(p+2) are also twin primes.at n=21A332968
• Primorial base emirps: prime numbers whose primorial base reversal is a different prime.at n=27A333425
• Prime numbersat n=3289