A379641 - cp's OEIS frontend

A379641 Smallest primitive prime factor of 8^n-1.

n	a(n)
1	7
2	3
3	73
4	5
5	31
6	19
7	127
8	17
9	262657
10	11
11	23
12	37
13	79
14	43
15	631
16	97
17	103
18	87211
19	32377
20	41
21	92737
22	67
23	47
24	433
25	601
26	2731
27	2593
28	29
29	233
30	18837001
31	2147483647
32	193
33	199
34	307
35	71
36	246241
37	223
38	571
39	937
40	61681
41	13367
42	77158673929
43	431
44	397
45	271
46	139
47	2351
48	577

[7, 3, 73, 5, 31, 19, 127, 17, 262657, 11, 23, 37, 79, 43, 631, 97, 103, 87211, 32377, 41, 92737, 67, 47, 433, 601, 2731, 2593, 29, 233, 18837001, 2147483647, 193, 199, 307, 71, 246241, 223, 571, 937, 61681, 13367, 77158673929, 431, 397, 271, 139, 2351, 577]

cp's OEIS Frontend

A379641 Smallest primitive prime factor of 8^n-1.

Table of values

List of values