|
Search: id:A124491
|
|
|
| A124491 |
|
Numbers n such that 2n-1, 4n-1, 6n-1, 8n-1, 10n-1, 12n-1, 14n-1 and 16n-1 are primes. |
|
+0
2
|
|
| 1447110, 30020760, 32261985, 121012185, 203937090, 546020475, 546037695, 837344865, 1140530160, 2517567255, 2664703335, 2841691440, 2896212165, 3000108405, 3190108740, 5204790360, 5744351970, 6872932605, 7090912185
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
MATHEMATICA
|
k = 0; inc = 3*5*7; While[k < 7200000000, k += inc; While[Nand @@ PrimeQ /@ ({2, 4, 6, 8, 10, 12, 14, 16}*k - 1), k += inc]; Print[k]; ]; (*Chandler*)
|
|
CROSSREFS
|
Cf. A124485-A124492.
Sequence in context: A015361 A108841 A124490 this_sequence A003939 A003932 A126175
Adjacent sequences: A124488 A124489 A124490 this_sequence A124492 A124493 A124494
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Artur Jasinski (grafix(AT)csl.pl), Nov 04 2006
|
|
EXTENSIONS
|
Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 21 2006
|
|
|
Search completed in 0.002 seconds
|
