A055628 - cp's OEIS frontend

A055628 Primes p whose period of the reciprocal 1/p is (p-1)/3.

n	a(n)
1	103
2	127
3	139
4	331
5	349
6	421
7	457
8	463
9	607
10	661
11	673
12	691
13	739
14	829
15	967
16	1657
17	1669
18	1699
19	1753
20	1993
21	2011
22	2131
23	2287
24	2647
25	2659
26	2749
27	2953
28	3217
29	3229
30	3583
31	3691
32	3697
33	3739
34	3793
35	3823
36	3931
37	4273
38	4297
39	4513
40	4549
41	4657
42	4903
43	4909
44	4993
45	5011

[103, 127, 139, 331, 349, 421, 457, 463, 607, 661, 673, 691, 739, 829, 967, 1657, 1669, 1699, 1753, 1993, 2011, 2131, 2287, 2647, 2659, 2749, 2953, 3217, 3229, 3583, 3691, 3697, 3739, 3793, 3823, 3931, 4273, 4297, 4513, 4549, 4657, 4903, 4909, 4993, 5011]

cp's OEIS Frontend

A055628 Primes p whose period of the reciprocal 1/p is (p-1)/3.

Table of values

List of values