|
| |
|
|
A124486
|
|
Numbers n such that 2n-1, 4n-1 and 6n-1 are primes.
|
|
1
| |
|
|
2, 3, 12, 15, 42, 45, 87, 117, 120, 147, 210, 330, 477, 507, 612, 705, 780, 792, 945, 1002, 1065, 1170, 1275, 1347, 1470, 1680, 1695, 1797, 1902, 2175, 2187, 2205, 2460, 2472, 2667, 3057, 3087, 4047, 4137, 4257, 4530, 4740, 4770, 5082, 5157, 5295, 5775
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
