

A102768


Numbers k such that 23*k + 11 is prime.


1



0, 4, 6, 10, 16, 24, 30, 36, 42, 46, 64, 70, 72, 76, 90, 100, 102, 114, 126, 130, 144, 150, 160, 172, 174, 184, 186, 196, 202, 204, 214, 226, 232, 234, 240, 244, 246, 252, 262, 270, 276, 280, 300, 312, 322, 342, 360, 366, 370, 402, 406, 414, 430, 436, 442, 444
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OFFSET

1,2


LINKS

Daniel Starodubtsev, Table of n, a(n) for n = 1..10001 [Offset shifted by Georg Fischer, Sep 27 2022]


EXAMPLE

4 is a term because 23*4 + 11 = 103 (prime).
64 is a term because 23*64 + 11 = 1483 (prime).
140 is a term because 23*130 + 11 = 3001 (prime).


MAPLE

A102768:=n>`if`(isprime(23*n+11), n, NULL); seq(A102768(n), n=0..500); # Wesley Ivan Hurt, Feb 28 2014


PROG

(Magma) [n: n in [0..1000]  IsPrime(23*n + 11)] // Vincenzo Librandi, Nov 17 2010
(PARI) select(n>isprime(23*n + 11), vector(1000, j, j1) ) \\ Joerg Arndt, Mar 01 2014


CROSSREFS

Sequence in context: A310588 A310589 A107305 * A075637 A027689 A023501
Adjacent sequences: A102765 A102766 A102767 * A102769 A102770 A102771


KEYWORD

nonn


AUTHOR

Parthasarathy Nambi, Feb 10 2005


EXTENSIONS

Offset changed to 1 by Georg Fischer, Sep 27 2022


STATUS

approved



