A130800 - cp's OEIS frontend

A130800 Numbers k such that both 2k+1 and 3k+1 are primes.

n	a(n)
1	2
2	6
3	14
4	20
5	26
6	36
7	50
8	54
9	74
10	90
11	116
12	140
13	146
14	174
15	200
16	204
17	210
18	224
19	230
20	270
21	284
22	306
23	330
24	336
25	350
26	354
27	384
28	404
29	410
30	426
31	440
32	476
33	510
34	516
35	554
36	564
37	596
38	600
39	624
40	644
41	650
42	704
43	714
44	726
45	740
46	746
47	834
48	846
49	894
50	930
51	944
52	950
53	1026
54	1040

[2, 6, 14, 20, 26, 36, 50, 54, 74, 90, 116, 140, 146, 174, 200, 204, 210, 224, 230, 270, 284, 306, 330, 336, 350, 354, 384, 404, 410, 426, 440, 476, 510, 516, 554, 564, 596, 600, 624, 644, 650, 704, 714, 726, 740, 746, 834, 846, 894, 930, 944, 950, 1026, 1040]

cp's OEIS Frontend

A130800 Numbers k such that both 2k+1 and 3k+1 are primes.

Table of values

List of values