A023228 - cp's OEIS frontend

A023228 Numbers k such that k and 8*k + 1 are both prime.

n	a(n)
1	2
2	5
3	11
4	17
5	29
6	71
7	101
8	107
9	131
10	137
11	149
12	179
13	239
14	269
15	347
16	401
17	431
18	449
19	479
20	491
21	509
22	557
23	599
24	617
25	659
26	677
27	761
28	809
29	821
30	857
31	929
32	941
33	947
34	977
35	1151
36	1187
37	1229
38	1289
39	1307
40	1361
41	1367
42	1409
43	1487
44	1559
45	1571
46	1601
47	1619
48	1667
49	1697
50	1811
51	1871

[2, 5, 11, 17, 29, 71, 101, 107, 131, 137, 149, 179, 239, 269, 347, 401, 431, 449, 479, 491, 509, 557, 599, 617, 659, 677, 761, 809, 821, 857, 929, 941, 947, 977, 1151, 1187, 1229, 1289, 1307, 1361, 1367, 1409, 1487, 1559, 1571, 1601, 1619, 1667, 1697, 1811, 1871]

cp's OEIS Frontend

A023228 Numbers k such that k and 8*k + 1 are both prime.

Table of values

List of values