|
| |
|
|
A116954
|
|
Numbers n such that 3*n^3 + 1 is prime.
|
|
0
| |
|
|
4, 10, 14, 16, 18, 20, 30, 36, 38, 48, 54, 58, 64, 70, 74, 86, 96, 106, 120, 140, 150, 154, 166, 170, 174, 176, 180, 200, 230, 234, 244, 260, 266, 268, 288, 296, 300, 304, 306, 308, 324, 330, 338, 340, 346, 348, 368, 384, 388, 394, 396, 406, 408, 434, 438, 440
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
EXAMPLE
| If n=48 then 3*n^3 + 1 = 331777 (prime).
|
|
|
MATHEMATICA
| Select[Range[2000], PrimeQ[3#^3 + 1] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Apr 22 2006
Select[Range[2, 500], PrimeQ[3#^3 + 1] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jul 22 2006
|
|
|
PROG
| (MAGMA) [ n: n in [0..500] | IsPrime(3*n^3 + 1) ] [From Vincenzo Librandi, Jan 31 2011]
|
|
|
CROSSREFS
| Cf. A089001.
Sequence in context: A179134 A103044 A114719 * A102686 A099439 A146763
Adjacent sequences: A116951 A116952 A116953 * A116955 A116956 A116957
|
|
|
KEYWORD
| nonn,less
|
|
|
AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Apr 20 2006
|
|
|
EXTENSIONS
| More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Apr 22 2006, Jul 22 2006
|
| |
|
|
