|
Search: id:A153974
|
|
|
| A153974 |
|
Numbers n such that n^3-3 is prime. |
|
+0
3
|
|
| 2, 4, 8, 10, 14, 16, 26, 34, 38, 40, 74, 80, 106, 110, 116, 124, 136, 158, 178, 184, 190, 206, 224, 230, 238, 256, 274, 280, 316, 320, 338, 340, 386, 410, 428, 446, 458, 464, 470, 484, 496, 530, 544, 550, 556, 590, 626, 634, 644, 646, 674, 710, 718, 728, 730
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
2^3-3=5 prime, 4^3-3=61 prime,...
|
|
MATHEMATICA
|
a[n_]:=n^x-y; lst={}; x=3; y=3; Do[If[PrimeQ[a[n]], AppendTo[lst, n]], {n, 0, 6!}]; lst
|
|
CROSSREFS
|
Cf. A028870, A028873, A038599
Sequence in context: A010069 A132895 A125499 this_sequence A034822 A050567 A069879
Adjacent sequences: A153971 A153972 A153973 this_sequence A153975 A153976 A153977
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 03 2009
|
|
EXTENSIONS
|
First two terms 0,1, are omitted by Zak Seidov (zakseidov(AT)yahoo.com), Mar 14 2009
|
|
|
Search completed in 0.002 seconds
|
