A287060 - cp's OEIS frontend

A287060 Primes a(n) such that a(1) = 2, a(2) = 3, and a(n) is the smallest prime greater than a(n-1) such that (a(n) - 1)/2 is not divisible by a(m) for all m < n.

n	a(n)
1	2
2	3
3	11
4	47
5	59
6	71
7	83
8	107
9	131
10	179
11	191
12	227
13	239
14	251
15	311
16	347
17	431
18	443
19	467
20	491
21	563
22	587
23	599
24	647
25	719
26	743
27	839
28	911
29	971
30	1019
31	1031
32	1091
33	1103
34	1151
35	1187
36	1259
37	1283
38	1307
39	1319
40	1367
41	1427
42	1451
43	1511
44	1523
45	1559
46	1571
47	1583
48	1619
49	1667

[2, 3, 11, 47, 59, 71, 83, 107, 131, 179, 191, 227, 239, 251, 311, 347, 431, 443, 467, 491, 563, 587, 599, 647, 719, 743, 839, 911, 971, 1019, 1031, 1091, 1103, 1151, 1187, 1259, 1283, 1307, 1319, 1367, 1427, 1451, 1511, 1523, 1559, 1571, 1583, 1619, 1667]

cp's OEIS Frontend

A287060 Primes a(n) such that a(1) = 2, a(2) = 3, and a(n) is the smallest prime greater than a(n-1) such that (a(n) - 1)/2 is not divisible by a(m) for all m < n.

Table of values

List of values