A186710 - cp's OEIS frontend

A186710 a(n) = gcd(k^n + 1, (k+1)^n + 1) for the smallest k at which the GCD exceeds 1.

n	a(n)
2	5
3	7
4	17
5	11
6	5
7	29
8	17
9	19
10	25
11	23
12	17
13	53
14	145
15	61
16	353
17	137
18	5
19	191
20	41
21	43
22	5
23	47
24	97
25	11
26	265
27	19
28	337
29	59
30	25
31	5953
32	257
33	67
34	5
35	29
36	17
37	223
38	5
39	157
40	17
41	83
42	145
43	173
44	89
45	19
46	5
47	283
48	353
49	29
50	12625
51	307
52	17
53	107
54	5
55	121
56	1921
57	229
58	5
59	709
60	241
61	367
62	5
63	817
64	769
65	521
66	5
67	269
68	137
69	139
70	725
71	853
72	55969
73	293
74	745
75	61
76	17
77	29
78	265

[5, 7, 17, 11, 5, 29, 17, 19, 25, 23, 17, 53, 145, 61, 353, 137, 5, 191, 41, 43, 5, 47, 97, 11, 265, 19, 337, 59, 25, 5953, 257, 67, 5, 29, 17, 223, 5, 157, 17, 83, 145, 173, 89, 19, 5, 283, 353, 29, 12625, 307, 17, 107, 5, 121, 1921, 229, 5, 709, 241, 367, 5, 817, 769, 521, 5, 269, 137, 139, 725, 853, 55969, 293, 745, 61, 17, 29, 265]

cp's OEIS Frontend

A186710 a(n) = gcd(k^n + 1, (k+1)^n + 1) for the smallest k at which the GCD exceeds 1.

Table of values

List of values