30389

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of the function f(x) = 2*x + 1.at n=21A023272
• Primes starting a Cunningham chain of the first kind of length 4.at n=16A059763
• Primes p such that 2^j+p^j are primes for j=0,1,4,16.at n=6A094492
• Primes p such that 2p+1, 4p+3, 6p+5 are all primes.at n=26A107020
• Primes p such that 2p+1, 4p+3, 6p+5, 8p+7 are all primes.at n=4A107021
• Smallest primes starting a complete three iterations Cunningham chain of the first or second kind.at n=26A110025
• Number of partitions of n such that m(1) > m(3), where m = multiplicity.at n=41A240059
• Number of squarefree integers congruent to {1, 2, 3} mod 8 <= 10^n.at n=4A274043
• Primes p that remain prime through 3 iterations of function f(x) = 6x - 1.at n=29A289109
• Primes p such that 4*p+3, 6*p+5 and 8*p+7 are all primes.at n=37A329551
• Primorial base emirps: prime numbers whose primorial base reversal is a different prime.at n=24A333425
• Primes whose position in the Wythoff array is immediately followed by a prime both in the next column and the next row.at n=19A352537
• Primes having only {0, 3, 8, 9} as digits.at n=31A386069
• Prime numbersat n=3283