A255925 - cp's OEIS frontend

A255925 Bases b for which exactly four Wieferich primes p with p < b exist such that p is a base-b Wieferich prime.

n	a(n)
1	116
2	117
3	118
4	233
5	245
6	249
7	251
8	261
9	269
10	276
11	298
12	325
13	369
14	374
15	401
16	423
17	460
18	485
19	487
20	505
21	526
22	604
23	618
24	629
25	653
26	717
27	721
28	723
29	737
30	776
31	793
32	838
33	851
34	856
35	857
36	863
37	867
38	881
39	893
40	932
41	962
42	969
43	978
44	1025
45	1037
46	1045
47	1057
48	1059
49	1079
50	1106

[116, 117, 118, 233, 245, 249, 251, 261, 269, 276, 298, 325, 369, 374, 401, 423, 460, 485, 487, 505, 526, 604, 618, 629, 653, 717, 721, 723, 737, 776, 793, 838, 851, 856, 857, 863, 867, 881, 893, 932, 962, 969, 978, 1025, 1037, 1045, 1057, 1059, 1079, 1106]

cp's OEIS Frontend

A255925 Bases b for which exactly four Wieferich primes p with p < b exist such that p is a base-b Wieferich prime.

Table of values

List of values