A250206 - cp's OEIS frontend

A250206 Least base b > 1 such that b^A000010(n) = 1 (mod n^2).

n	a(n)
1	2
2	5
3	8
4	7
5	7
6	17
7	18
8	15
9	26
10	7
11	3
12	17
13	19
14	19
15	26
16	31
17	38
18	53
19	28
20	7
21	19
22	3
23	28
24	17
25	57
26	19
27	80
28	19
29	14
30	107
31	115
32	63
33	118
34	65
35	18
36	53
37	18
38	69
39	19
40	7
41	51
42	19
43	19
44	3
45	26
46	63
47	53
48	17
49	18
50	57
51	134
52	19
53	338
54	161
55	3
56	31
57	28
58	41
59	53
60	107
61	264
62	115
63	19
64	127
65	99
66	161
67	143
68	65
69	28
70	99
71	11
72	55

[2, 5, 8, 7, 7, 17, 18, 15, 26, 7, 3, 17, 19, 19, 26, 31, 38, 53, 28, 7, 19, 3, 28, 17, 57, 19, 80, 19, 14, 107, 115, 63, 118, 65, 18, 53, 18, 69, 19, 7, 51, 19, 19, 3, 26, 63, 53, 17, 18, 57, 134, 19, 338, 161, 3, 31, 28, 41, 53, 107, 264, 115, 19, 127, 99, 161, 143, 65, 28, 99, 11, 55]

cp's OEIS Frontend

A250206 Least base b > 1 such that b^A000010(n) = 1 (mod n^2).

Table of values

List of values

n	a(n)
1	2
2	5
3	8
4	7
5	7
6	17
7	18
8	15
9	26
10	7
11	3
12	17
13	19
14	19
15	26
16	31
17	38
18	53
19	28
20	7
21	19
22	3
23	28
24	17
25	57
26	19
27	80
28	19
29	14
30	107
31	115
32	63
33	118
34	65
35	18
36	53
37	18
38	69
39	19
40	7
41	51
42	19
43	19
44	3
45	26
46	63
47	53
48	17
49	18
50	57
51	134
52	19
53	338
54	161
55	3
56	31
57	28
58	41
59	53
60	107
61	264
62	115
63	19
64	127
65	99
66	161
67	143
68	65
69	28
70	99
71	11
72	55

n	a(n)
1	2
2	5
3	8
4	7
5	7
6	17
7	18
8	15
9	26
10	7
11	3
12	17
13	19
14	19
15	26
16	31
17	38
18	53
19	28
20	7
21	19
22	3
23	28
24	17
25	57
26	19
27	80
28	19
29	14
30	107
31	115
32	63
33	118
34	65
35	18
36	53
37	18
38	69
39	19
40	7
41	51
42	19
43	19
44	3
45	26
46	63
47	53
48	17
49	18
50	57
51	134
52	19
53	338
54	161
55	3
56	31
57	28
58	41
59	53
60	107
61	264
62	115
63	19
64	127
65	99
66	161
67	143
68	65
69	28
70	99
71	11
72	55

n	a(n)
1	2
2	5
3	8
4	7
5	7
6	17
7	18
8	15
9	26
10	7
11	3
12	17
13	19
14	19
15	26
16	31
17	38
18	53
19	28
20	7
21	19
22	3
23	28
24	17
25	57
26	19
27	80
28	19
29	14
30	107
31	115
32	63
33	118
34	65
35	18
36	53
37	18
38	69
39	19
40	7
41	51
42	19
43	19
44	3
45	26
46	63
47	53
48	17
49	18
50	57
51	134
52	19
53	338
54	161
55	3
56	31
57	28
58	41
59	53
60	107
61	264
62	115
63	19
64	127
65	99
66	161
67	143
68	65
69	28
70	99
71	11
72	55