login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A107301 Numbers k such that 10007*k + 99991 is prime. 2
0, 6, 14, 54, 66, 80, 86, 90, 126, 128, 146, 198, 200, 206, 216, 234, 236, 266, 278, 296, 308, 326, 336, 350, 368, 380, 390, 420, 438, 446, 458, 476, 494, 530, 534, 536, 564, 584, 590, 594, 614, 630, 660, 668, 674, 678, 684, 716, 758, 860, 870, 894, 936, 944 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

10007 and 99991 are the smallest and largest five-digit primes.

LINKS

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

EXAMPLE

If k=0, then 10007*k + 99991 = 99991 (prime).

If k=128, then 10007*k + 99991 = 1380887 (prime).

MATHEMATICA

Select[Range[0, 1000], PrimeQ[10007#+99991]&] (* Harvey P. Dale, May 01 2018 *)

PROG

(MAGMA) [n: n in [0..100000] | IsPrime(10007*n + 99991)]; // Vincenzo Librandi, Nov 13 2010

(PARI) is(n)=isprime(10007*n+99991) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Cf. A107302.

Sequence in context: A005515 A114705 A200187 * A118432 A032404 A059954

Adjacent sequences:  A107298 A107299 A107300 * A107302 A107303 A107304

KEYWORD

nonn,easy

AUTHOR

Parthasarathy Nambi, May 20 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 7 23:48 EDT 2021. Contains 343652 sequences. (Running on oeis4.)