|
Search: id:A139513
|
|
|
| A139513 |
|
Primes congruent to (1 or 3 or 7 or 9) mod 20. |
|
+0
1
|
|
| 3, 7, 23, 29, 41, 43, 47, 61, 67, 83, 89, 101, 103, 107, 109, 127, 149, 163, 167, 181, 223, 227, 229, 241, 263, 269, 281, 283, 307, 347, 349, 367, 383, 389, 401, 409, 421, 443, 449, 461, 463, 467, 487, 503, 509, 521, 523, 541, 547, 563, 569, 587, 601, 607, 641
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
REFERENCES
|
Dirichlet & Dedekins Lectures on Number Theory (English Translation 1999) p. 119.
|
|
MATHEMATICA
|
a = {}; Do[If[MemberQ[{1, 3, 7, 9}, Mod[Prime[n], 20]], AppendTo[a, Prime[n]]], {n, 1, 200}]; a (*Artur Jasinski*)
|
|
CROSSREFS
|
Adjacent sequences: A139510 A139511 A139512 this_sequence A139514 A139515 A139516
Sequence in context: A069505 A032403 A072584 this_sequence A057191 A090548 A087309
|
|
KEYWORD
|
nonn,new
|
|
AUTHOR
|
Artur Jasinski (grafix(AT)csl.pl), Apr 25 2008
|
|
|
Search completed in 0.002 seconds
|
