|
Search: id:A114272
|
|
|
| A114272 |
|
Numbers n such that n^2 + k is prime, k=9 case. |
|
+0
10
|
|
| 2, 8, 10, 20, 32, 38, 40, 52, 58, 62, 70, 82, 88, 98, 100, 110, 112, 118, 140, 142, 160, 170, 188, 190, 200, 202, 212, 218, 220, 242, 298, 308, 320, 332, 350, 358, 368, 380, 382, 400, 410, 412, 422, 448, 472, 482, 490, 502, 512, 530, 538, 542, 568, 572, 578
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
Other cases: A005574 k=1, A067201 k=2, A049422 k=3, A007591 k=4, A078402 k=5, A114269 k=6, A114270 k=7, A114271 k=8, A114273 k=10, A114274 k=11, A114275 k=12.
|
|
MATHEMATICA
|
lst={}; k=9; Do[If[PrimeQ[n^2+k], (*Print[n]; *)AppendTo[lst, n]], {n, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 26 2008]
|
|
CROSSREFS
|
Cf. A005574, A067201, A049422, A007591, A078402, A114269, A114270, A114271, A114273, A114274, A114275.
Sequence in context: A082396 A071388 A032356 this_sequence A108468 A165593 A127219
Adjacent sequences: A114269 A114270 A114271 this_sequence A114273 A114274 A114275
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Zak Seidov (zakseidov(AT)yahoo.com), Nov 19 2005
|
|
|
Search completed in 0.002 seconds
|
