A242755 - cp's OEIS frontend

A242755 Primes p such that pi(p)*q == 1 (mod p) for some prime q < p, where pi(p) is the number of primes not exceeding p.

n	a(n)
1	3
2	5
3	7
4	13
5	17
6	29
7	31
8	41
9	59
10	61
11	73
12	127
13	157
14	173
15	179
16	199
17	223
18	227
19	239
20	241
21	271
22	281
23	311
24	317
25	349
26	353
27	359
28	367
29	379
30	419
31	439
32	479
33	487
34	503
35	541
36	557
37	599
38	643
39	653
40	709
41	769
42	773
43	809
44	823
45	829
46	839
47	859
48	941
49	953
50	1063

[3, 5, 7, 13, 17, 29, 31, 41, 59, 61, 73, 127, 157, 173, 179, 199, 223, 227, 239, 241, 271, 281, 311, 317, 349, 353, 359, 367, 379, 419, 439, 479, 487, 503, 541, 557, 599, 643, 653, 709, 769, 773, 809, 823, 829, 839, 859, 941, 953, 1063]

cp's OEIS Frontend

A242755 Primes p such that pi(p)*q == 1 (mod p) for some prime q < p, where pi(p) is the number of primes not exceeding p.

Table of values

List of values