A023282 -id:A023282 - cp's OEIS frontend

A023312 Primes that remain prime through 4 iterations of function f(x) = 4x + 9.

883, 2857, 4073, 4663, 9311, 11131, 16493, 18257, 19541, 22063, 28687, 35837, 48383, 55817, 59393, 62131, 71387, 73037, 73133, 78173, 83423, 86111, 88261, 90511, 93287, 93811, 99377, 101051, 104537, 122203, 125927, 149497, 152377, 153941, 155653

Offset: 1

David W. Wilson

nonn

Primes p such that 4*p+9, 16*p+45, 64*p+189 and 256*p+765 are also primes. - Vincenzo Librandi, Aug 04 2010

John Cerkan, Table of n, a(n) for n = 1..10000

Subsequence of A023216, A023251, A023282, and A111199.

[n: n in [1..1000000] | IsPrime(n) and IsPrime(4*n+9) and IsPrime(16*n+45) and IsPrime(64*n+189) and IsPrime(256*n+765)] // Vincenzo Librandi, Aug 04 2010

A023340 Primes that remain prime through 5 iterations of function f(x) = 4x + 9.

Original entry on oeis.org

18257, 19541, 22063, 48383, 73037, 73133, 78173, 88261, 93811, 101051, 104537, 152377, 153941, 162343, 168043, 175523, 204251, 211681, 238463, 287341, 375253, 386713, 423961, 659513, 672181, 676103, 688027, 741283, 759491, 770951, 786673

Offset: 1

David W. Wilson

nonn

Primes p such that 4*p+9, 16*p+45, 64*p+189, 256*p+765 and 1024*p+3069 are also primes. - Vincenzo Librandi, Aug 05 2010

John Cerkan, Table of n, a(n) for n = 1..10000

Subsequence of A023216, A023251, A023282, A023312, and A111199.

[n: n in [1..10000000] | IsPrime(n) and IsPrime(4*n+9) and IsPrime(16*n+45) and IsPrime(64*n+189) and IsPrime(256*n+765) and IsPrime(1024*n+3069)] // Vincenzo Librandi, Aug 05 2010

is(n)=isprime(n) && isprime(4*n+9) && isprime(16*n+45) && isprime(64*n+189) && isprime(256*n+765) && isprime(1024*n+3069) \\ Charles R Greathouse IV, Oct 11 2016

cp's OEIS Frontend

A023312 Primes that remain prime through 4 iterations of function f(x) = 4x + 9.

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