A105132 -id:A105132 - cp's OEIS frontend

A105139 Numbers k such that 512*k+257 is prime.

0, 1, 6, 15, 18, 27, 28, 43, 45, 52, 60, 61, 70, 73, 78, 81, 85, 90, 96, 97, 111, 112, 117, 138, 147, 151, 153, 165, 172, 178, 187, 192, 196, 202, 208, 210, 211, 213, 216, 222, 228, 231, 235, 243, 250, 252, 253, 255, 262, 265, 270, 280, 291, 298, 301, 312, 325, 328, 330, 337

Offset: 1

N. J. A. Sloane, based on correspondence from Marco Matosic, Apr 11 2005

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A095278, A105133-A105140, A002145, A007521, A105126-A105132.

[n: n in [0..350] | IsPrime(512*n + 257)]; // Vincenzo Librandi, Jan 08 2013

Select[Range[0, 500], PrimeQ[512 # + 257]&] (* Vincenzo Librandi, Jan 08 2013 *)

is(n)=isprime(512*n+257) \\ Charles R Greathouse IV, Jun 06 2017

A105135 Numbers n such that 32n+17 is prime.

Original entry on oeis.org

0, 3, 7, 10, 12, 13, 18, 27, 30, 31, 37, 40, 42, 46, 48, 55, 58, 66, 67, 75, 81, 87, 88, 90, 96, 97, 100, 103, 115, 117, 118, 121, 126, 130, 132, 133, 135, 142, 145, 147, 150, 156, 163, 165, 168, 172, 195, 198, 201, 202, 205, 208, 210, 213, 217, 220, 222, 235, 243, 250, 252

Offset: 1

N. J. A. Sloane, based on correspondence from Marco Matosic, Apr 11 2005

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A095278, A105133-A105140, A002145, A007521, A105126-A105132.

[n: n in [0..500] | IsPrime(32*n+17)]; // Vincenzo Librandi, Jan 07 2013

Select[Range[0, 260], PrimeQ[32 # + 17]&] (* Harvey P. Dale, Apr 26 2011 *)

is(n)=isprime(32*n+17) \\ Charles R Greathouse IV, Jun 12 2017

A105136 Numbers n such that 64n+33 is prime.

Original entry on oeis.org

1, 5, 10, 14, 19, 26, 29, 31, 32, 35, 40, 41, 47, 49, 52, 56, 62, 64, 70, 80, 82, 91, 95, 104, 115, 116, 119, 122, 127, 130, 134, 136, 139, 146, 151, 160, 161, 164, 166, 179, 181, 182, 196, 197, 206, 211, 214, 217, 221, 224, 227, 230, 235, 236, 239, 244, 250, 251, 256, 257

Offset: 1

N. J. A. Sloane, based on correspondence from Marco Matosic, Apr 11 2005

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Cf. A095278, A105133-A105140, A002145, A007521, A105126-A105132.

Select[Range[300],PrimeQ[64#+33]&] (* Harvey P. Dale, Sep 19 2011 *)

is(n)=isprime(64*n+33) \\ Charles R Greathouse IV, Jun 12 2017

A105137 Numbers n such that 128n+65 is prime.

Original entry on oeis.org

1, 3, 4, 9, 12, 16, 21, 24, 33, 36, 37, 42, 43, 46, 49, 54, 58, 61, 66, 67, 72, 79, 81, 88, 93, 94, 102, 103, 106, 112, 114, 123, 124, 126, 138, 148, 154, 157, 163, 166, 168, 177, 186, 187, 196, 198, 199, 201, 204, 207, 211, 213, 214, 219, 231, 232, 238, 252, 256, 262, 264

Offset: 1

N. J. A. Sloane, based on correspondence from Marco Matosic, Apr 11 2005

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A095278, A105133-A105140, A002145, A007521, A105126-A105132.

Subsequence of A032766.

[n: n in [0..500] | IsPrime(128*n+65)]; // Vincenzo Librandi, Jan 07 2013

Select[Range[500], PrimeQ[128 # + 65]&] (* Vincenzo Librandi, Jan 07 2013 *)

is(n)=isprime(128*n+65) \\ Charles R Greathouse IV, Jun 12 2017

A339900 Lexicographically earliest permutation of odd primes such that A007814(a(n)-1) = 1+A007814(n), where A007814 gives the 2-adic valuation of n.

Original entry on oeis.org

3, 5, 7, 41, 11, 13, 19, 17, 23, 29, 31, 73, 43, 37, 47, 97, 59, 53, 67, 89, 71, 61, 79, 113, 83, 101, 103, 137, 107, 109, 127, 193, 131, 149, 139, 233, 151, 157, 163, 241, 167, 173, 179, 281, 191, 181, 199, 353, 211, 197, 223, 313, 227, 229, 239, 337, 251, 269, 263, 409, 271, 277, 283, 641, 307, 293, 311, 457, 331

Offset: 1

Antti Karttunen, Dec 25 2020

Antti Karttunen, Table of n, a(n) for n = 1..20000

Cf. A001511, A007814, A065091.
Cf. A002145 (odd bisection), A007521 (quadrisection starting from 5), A105126, A105127, A105128, A105129, A105130, A105131, A105132.
Cf. also A108546, A111745.

A339900(n) = { my(lev=1+valuation(n,2), k=(1+(n>>(lev-1)))/2); forprime(p=3,,if(valuation(p-1,2)==lev, k--; if(!k, return(p)))); };

cp's OEIS Frontend

A105139 Numbers k such that 512*k+257 is prime.

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Magma

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PARI

A105135 Numbers n such that 32n+17 is prime.

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Magma

Mathematica

PARI

A105136 Numbers n such that 64n+33 is prime.

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Mathematica

PARI

A105137 Numbers n such that 128n+65 is prime.

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Author

Keywords

Links

Crossrefs

Programs

Magma

Mathematica

PARI

A339900 Lexicographically earliest permutation of odd primes such that A007814(a(n)-1) = 1+A007814(n), where A007814 gives the 2-adic valuation of n.

Views

Author

Keywords

Links

Crossrefs

Programs

PARI