A081257 - cp's OEIS frontend

A081257 a(n) is the greatest prime factor of (n^3 - 1).

n	a(n)
2	7
3	13
4	7
5	31
6	43
7	19
8	73
9	13
10	37
11	19
12	157
13	61
14	211
15	241
16	13
17	307
18	17
19	127
20	421
21	463
22	13
23	79
24	601
25	31
26	37
27	757
28	271
29	67
30	29
31	331
32	151
33	1123
34	397
35	97
36	43
37	67
38	1483
39	223
40	547
41	1723
42	139
43	631
44	283
45	109
46	103
47	61
48	181
49	43
50	2551
51	379
52	919
53	409
54	2971
55	79
56	103
57	3307
58	163

[7, 13, 7, 31, 43, 19, 73, 13, 37, 19, 157, 61, 211, 241, 13, 307, 17, 127, 421, 463, 13, 79, 601, 31, 37, 757, 271, 67, 29, 331, 151, 1123, 397, 97, 43, 67, 1483, 223, 547, 1723, 139, 631, 283, 109, 103, 61, 181, 43, 2551, 379, 919, 409, 2971, 79, 103, 3307, 163]

cp's OEIS Frontend

A081257 a(n) is the greatest prime factor of (n^3 - 1).

Table of values

List of values