|
| |
|
|
A005539
|
|
Numbers n such that 10*3^n + 1 is prime.
(Formerly M2337)
|
|
0
| |
|
|
1, 3, 4, 7, 9, 12, 18, 22, 102, 112, 157, 162, 289, 619, 763, 1389, 1783, 1882, 3294, 3567
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
REFERENCES
| N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
H. C. Williams and C. R. Zarnke, Some prime numbers of the forms 2*3^n+1 and 2*3^n-1, Math. Comp., 26 (1972), 995-998.
|
|
|
MATHEMATICA
| Do[ If[ PrimeQ[ 10*3^n + 1], Print[n]], {n, 1, 6810}]
|
|
|
CROSSREFS
| Sequence in context: A060142 A049844 A140402 * A203623 A053099 A073273
Adjacent sequences: A005536 A005537 A005538 * A005540 A005541 A005542
|
|
|
KEYWORD
| hard,nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
|
|
EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 07, 2000.
|
| |
|
|
