A215684 - cp's OEIS frontend

A215684 Let p=prime=a(n); then a(n+1) = smallest prime q>p such that 2p+q and 2q+p are both primes.

n	a(n)
1	3
2	5
3	7
4	17
5	67
6	107
7	277
8	353
9	487
10	557
11	787
12	797
13	853
14	983
15	1033
16	1163
17	1597
18	1637
19	1657
20	1697
21	1867
22	1913
23	2347
24	2543
25	2833
26	2897
27	2953
28	2957
29	3343
30	3413
31	3607
32	3623
33	3643
34	3863
35	3907
36	4013
37	4447
38	4583
39	4987
40	5087
41	5113
42	5507
43	6277
44	6653
45	7027
46	7433
47	7603

[3, 5, 7, 17, 67, 107, 277, 353, 487, 557, 787, 797, 853, 983, 1033, 1163, 1597, 1637, 1657, 1697, 1867, 1913, 2347, 2543, 2833, 2897, 2953, 2957, 3343, 3413, 3607, 3623, 3643, 3863, 3907, 4013, 4447, 4583, 4987, 5087, 5113, 5507, 6277, 6653, 7027, 7433, 7603]

cp's OEIS Frontend

A215684 Let p=prime=a(n); then a(n+1) = smallest prime q>p such that 2p+q and 2q+p are both primes.

Table of values

List of values