|
Search: id:A155143
|
|
|
| A155143 |
|
Primes p such that p-+2, p-+4, p-+6 are Square-free. |
|
+0
2
|
|
| 17, 37, 89, 107, 109, 197, 199, 233, 307, 397, 433, 449, 467, 487, 557, 593, 613, 647, 683, 701, 757, 809, 811, 883, 953, 991, 1009, 1061, 1063, 1097, 1117, 1151, 1153, 1259, 1297, 1459, 1493, 1511, 1549, 1601, 1637, 1657, 1693, 1747, 1783, 1889, 1997
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
MATHEMATICA
|
<<NumberTheory`NumberTheoryFunctions` lst={}; Do[p=Prime[n]; If[SquareFreeQ[p-2]&&SquareFreeQ[p+2]&&SquareFreeQ[p-4]&&SquareFreeQ[p+4]&&Squar\ eFreeQ[p-6]&&SquareFreeQ[p+6], AppendTo[lst, p]], {n, 6!}]; lst
|
|
CROSSREFS
|
Cf. A153213, A049282, A155139, A155140, A155141, A155142
Sequence in context: A093930 A048880 A075892 this_sequence A141886 A060429 A052292
Adjacent sequences: A155140 A155141 A155142 this_sequence A155144 A155145 A155146
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 21 2009
|
|
|
Search completed in 0.002 seconds
|
