|
Search: id:A107580
|
|
|
| A107580 |
|
Numbers n such that (n + prime(n)) and (n+1 + prime(n+1)) are divisible by 5. |
|
+0
1
|
|
| 27, 62, 63, 78, 88, 93, 112, 117, 122, 131, 136, 137, 146, 147, 162, 163, 226, 283, 287, 348, 371, 382, 391, 401, 402, 447, 483, 526, 527, 532, 533, 547, 552, 612, 626, 641, 642, 678, 687, 688, 718, 727, 766, 806, 877, 888, 986, 987, 992, 996, 1002, 1011, 1022
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
For some values of n, e.g., 62, 132, 146, 162, also (n+2 + prime(n+2)) is divisible by 5.
|
|
MATHEMATICA
|
Select[Range[5000], Mod[Prime[ # ]+#, 5]+Mod[Prime[ #+1]+#+1, 5]==0&]
|
|
CROSSREFS
|
Sequence in context: A053180 A080864 A039459 this_sequence A138610 A128530 A044129
Adjacent sequences: A107577 A107578 A107579 this_sequence A107581 A107582 A107583
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Zak Seidov (zakseidov(AT)yahoo.com), Jun 10 2005
|
|
|
Search completed in 0.002 seconds
|
