|
| |
|
|
A125215
|
|
Semiprimes s such that s-/+2 are primes.
|
|
3
|
|
|
|
9, 15, 21, 39, 69, 111, 129, 309, 381, 489, 501, 771, 879, 939, 1011, 1299, 1569, 2271, 2391, 2661, 2859, 3039, 3189, 3459, 3849, 3909, 3921, 4449, 4791, 4971, 5001, 5079, 5169, 5349, 5739, 6009, 6999, 7041, 7671, 8691, 8781, 9201, 10599, 11469, 11829
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
| |
| |
|
|