|
Search: id:A093717
|
|
|
| A093717 |
|
Numbers n such that 4^n+3^(n-1) is prime. |
|
+0
8
|
|
| 1, 2, 3, 4, 6, 8, 10, 12, 15, 19, 27, 30, 32, 34, 43, 48, 51, 72, 88, 106, 906, 963, 1328, 1336, 1611, 1664, 2680, 3122, 3267
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
EXAMPLE
|
19 is a member since 419+318 = 2388583837526729 which is a prime number.
|
|
MATHEMATICA
|
Do[ If[ PrimeQ[4^n + 3^(n - 1)], Print[n]], {n, 5000}]
|
|
CROSSREFS
|
Cf. A082103, A093793, A093765, A096185, A093794, A093795, A096186.
Sequence in context: A001972 A005705 A139542 this_sequence A002093 A067069 A100497
Adjacent sequences: A093714 A093715 A093716 this_sequence A093718 A093719 A093720
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Herman H. Rosenfeld (herm3(AT)pacbell.net), May 17 2004
|
|
EXTENSIONS
|
More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 18 2004
|
|
|
Search completed in 0.002 seconds
|
