A111173 - cp's OEIS frontend

A111173 Sophie Germain triprimes: k and 2k + 1 are both the product of 3 primes, not necessarily distinct.

n	a(n)
1	52
2	76
3	130
4	171
5	172
6	212
7	238
8	318
9	322
10	325
11	332
12	357
13	370
14	387
15	388
16	402
17	423
18	430
19	436
20	442
21	465
22	507
23	508
24	556
25	604
26	610
27	654
28	665
29	670
30	710
31	722
32	747
33	759
34	762
35	772
36	775
37	786
38	790
39	805
40	814
41	822
42	826
43	847
44	874
45	885
46	902
47	906
48	916
49	927
50	942
51	987
52	1004

[52, 76, 130, 171, 172, 212, 238, 318, 322, 325, 332, 357, 370, 387, 388, 402, 423, 430, 436, 442, 465, 507, 508, 556, 604, 610, 654, 665, 670, 710, 722, 747, 759, 762, 772, 775, 786, 790, 805, 814, 822, 826, 847, 874, 885, 902, 906, 916, 927, 942, 987, 1004]

cp's OEIS Frontend

A111173 Sophie Germain triprimes: k and 2k + 1 are both the product of 3 primes, not necessarily distinct.

Table of values

List of values