

A140447


List of prime pairs of form p, p+22.


4



7, 29, 19, 41, 31, 53, 37, 59, 61, 83, 67, 89, 79, 101, 109, 131, 127, 149, 151, 173, 157, 179, 211, 233, 229, 251, 241, 263, 271, 293, 331, 353, 337, 359, 367, 389, 379, 401, 397, 419, 409, 431, 421, 443, 439, 461, 457, 479, 487, 509, 499, 521, 541, 563, 547
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OFFSET

1,1


COMMENTS

The two primes p and p+22 are not necessarily adjacent.


LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..10000


EXAMPLE

The pairs are (7, 29), (19, 41), (31, 53) etc.


MATHEMATICA

{#, # + 22} & /@ Select[Prime@ Range@ 100, PrimeQ@ # && PrimeQ[# + 22] &] // Flatten (* Michael De Vlieger, May 23 2016 *)


PROG

(Ruby)
require 'prime'
ary = []
Prime.each(487447).each{i ary += [i, i + 22] if (i + 22).prime?}
p ary # Seiichi Manyama, May 22 2016


CROSSREFS

Cf. A000040, A094343.
Sequence in context: A050548 A261845 A181942 * A038934 A262285 A041088
Adjacent sequences: A140444 A140445 A140446 * A140448 A140449 A140450


KEYWORD

nonn


AUTHOR

JuriStepan Gerasimov, Jun 26 2008


EXTENSIONS

Typo in definition edited by D. S. McNeil, Dec 10 2009
Entries verified and extended by D. S. McNeil, Dec 10 2009


STATUS

approved



