|
| |
|
|
A115104
|
|
Numbers n such that 4*n^3 + 1 is prime.
|
|
4
| |
|
|
1, 3, 4, 7, 9, 10, 19, 25, 34, 37, 39, 42, 49, 54, 55, 72, 73, 78, 85, 87, 93, 94, 102, 108, 109, 118, 138, 142, 147, 157, 160, 165, 168, 175, 192, 195, 202, 210, 214, 220, 228, 232, 243, 247, 249, 250, 252, 253, 258, 267, 273, 274, 279, 289, 297
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
EXAMPLE
| If n=94 then (4*n^3 + 1) = 3322337 (prime).
|
|
|
MATHEMATICA
| Select[Range[300], PrimeQ[4*#^3 + 1] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 04 2006
|
|
|
CROSSREFS
| Cf. A001912. See A199307 for the actual primes.
See also A199364, A199365, A199366, A199367, A199368, A199369.
Sequence in context: A002977 A024799 A039579 * A095043 A019990 A047544
Adjacent sequences: A115101 A115102 A115103 * A115105 A115106 A115107
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Mar 02 2006
|
|
|
EXTENSIONS
| More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Mar 04 2006
|
| |
|
|
