A306431 - cp's OEIS frontend

A306431 Least number x > 1 such that n*x divides 1 + Sum_{k=1..x-1} k^(x-1).

n	a(n)
1	2
2	3
3	13
4	7
5	19
6	31
7	41
8	31
9	13
10	19
11	43
12	31
13	23
14	83
15	139
16	31
17	61
18	67
19	113
20	79
21	251
22	43
23	19
24	31
25	199
26	23
27	13
28	167
29	53
30	139
31	83
32	127
33	157
34	67
35	293
36	431
37	443
38	151
39	103
40	79
41	61
42	251
43	113
44	47
45	337
46	19
47	179
48	31
49	41
50	199
51	67
52	23
53	19
54	499
55	181
56	367
57	607
58	139
59	257
60	359

[2, 3, 13, 7, 19, 31, 41, 31, 13, 19, 43, 31, 23, 83, 139, 31, 61, 67, 113, 79, 251, 43, 19, 31, 199, 23, 13, 167, 53, 139, 83, 127, 157, 67, 293, 431, 443, 151, 103, 79, 61, 251, 113, 47, 337, 19, 179, 31, 41, 199, 67, 23, 19, 499, 181, 367, 607, 139, 257, 359]

cp's OEIS Frontend

A306431 Least number x > 1 such that n*x divides 1 + Sum_{k=1..x-1} k^(x-1).

Table of values

List of values

n	a(n)
1	2
2	3
3	13
4	7
5	19
6	31
7	41
8	31
9	13
10	19
11	43
12	31
13	23
14	83
15	139
16	31
17	61
18	67
19	113
20	79
21	251
22	43
23	19
24	31
25	199
26	23
27	13
28	167
29	53
30	139
31	83
32	127
33	157
34	67
35	293
36	431
37	443
38	151
39	103
40	79
41	61
42	251
43	113
44	47
45	337
46	19
47	179
48	31
49	41
50	199
51	67
52	23
53	19
54	499
55	181
56	367
57	607
58	139
59	257
60	359

n	a(n)
1	2
2	3
3	13
4	7
5	19
6	31
7	41
8	31
9	13
10	19
11	43
12	31
13	23
14	83
15	139
16	31
17	61
18	67
19	113
20	79
21	251
22	43
23	19
24	31
25	199
26	23
27	13
28	167
29	53
30	139
31	83
32	127
33	157
34	67
35	293
36	431
37	443
38	151
39	103
40	79
41	61
42	251
43	113
44	47
45	337
46	19
47	179
48	31
49	41
50	199
51	67
52	23
53	19
54	499
55	181
56	367
57	607
58	139
59	257
60	359

n	a(n)
1	2
2	3
3	13
4	7
5	19
6	31
7	41
8	31
9	13
10	19
11	43
12	31
13	23
14	83
15	139
16	31
17	61
18	67
19	113
20	79
21	251
22	43
23	19
24	31
25	199
26	23
27	13
28	167
29	53
30	139
31	83
32	127
33	157
34	67
35	293
36	431
37	443
38	151
39	103
40	79
41	61
42	251
43	113
44	47
45	337
46	19
47	179
48	31
49	41
50	199
51	67
52	23
53	19
54	499
55	181
56	367
57	607
58	139
59	257
60	359