A275391 - cp's OEIS frontend

A275391 Least k such that n divides sigma(k^k) (k > 0).

n	a(n)
1	1
2	3
3	5
4	3
5	3
6	5
7	2
8	3
9	5
10	3
11	19
12	11
13	11
14	5
15	15
16	7
17	15
18	5
19	11
20	3
21	5
22	19
23	10
24	11
25	7
26	11
27	17
28	11
29	13
30	15
31	5
32	7
33	29
34	15
35	23
36	11
37	11
38	11
39	11
40	3
41	15
42	5
43	35
44	19
45	23
46	21
47	22
48	15
49	13
50	7
51	15
52	11
53	23
54	17
55	19
56	11
57	11
58	13
59	28
60	15
61	11
62	5
63	5
64	15
65	15
66	29
67	21
68	15
69	65
70	23
71	34
72	11
73	4
74	11
75	29
76	11
77	39
78	11
79	23
80	7
81	17

[1, 3, 5, 3, 3, 5, 2, 3, 5, 3, 19, 11, 11, 5, 15, 7, 15, 5, 11, 3, 5, 19, 10, 11, 7, 11, 17, 11, 13, 15, 5, 7, 29, 15, 23, 11, 11, 11, 11, 3, 15, 5, 35, 19, 23, 21, 22, 15, 13, 7, 15, 11, 23, 17, 19, 11, 11, 13, 28, 15, 11, 5, 5, 15, 15, 29, 21, 15, 65, 23, 34, 11, 4, 11, 29, 11, 39, 11, 23, 7, 17]

cp's OEIS Frontend

A275391 Least k such that n divides sigma(k^k) (k > 0).

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	3
5	3
6	5
7	2
8	3
9	5
10	3
11	19
12	11
13	11
14	5
15	15
16	7
17	15
18	5
19	11
20	3
21	5
22	19
23	10
24	11
25	7
26	11
27	17
28	11
29	13
30	15
31	5
32	7
33	29
34	15
35	23
36	11
37	11
38	11
39	11
40	3
41	15
42	5
43	35
44	19
45	23
46	21
47	22
48	15
49	13
50	7
51	15
52	11
53	23
54	17
55	19
56	11
57	11
58	13
59	28
60	15
61	11
62	5
63	5
64	15
65	15
66	29
67	21
68	15
69	65
70	23
71	34
72	11
73	4
74	11
75	29
76	11
77	39
78	11
79	23
80	7
81	17

n	a(n)
1	1
2	3
3	5
4	3
5	3
6	5
7	2
8	3
9	5
10	3
11	19
12	11
13	11
14	5
15	15
16	7
17	15
18	5
19	11
20	3
21	5
22	19
23	10
24	11
25	7
26	11
27	17
28	11
29	13
30	15
31	5
32	7
33	29
34	15
35	23
36	11
37	11
38	11
39	11
40	3
41	15
42	5
43	35
44	19
45	23
46	21
47	22
48	15
49	13
50	7
51	15
52	11
53	23
54	17
55	19
56	11
57	11
58	13
59	28
60	15
61	11
62	5
63	5
64	15
65	15
66	29
67	21
68	15
69	65
70	23
71	34
72	11
73	4
74	11
75	29
76	11
77	39
78	11
79	23
80	7
81	17

n	a(n)
1	1
2	3
3	5
4	3
5	3
6	5
7	2
8	3
9	5
10	3
11	19
12	11
13	11
14	5
15	15
16	7
17	15
18	5
19	11
20	3
21	5
22	19
23	10
24	11
25	7
26	11
27	17
28	11
29	13
30	15
31	5
32	7
33	29
34	15
35	23
36	11
37	11
38	11
39	11
40	3
41	15
42	5
43	35
44	19
45	23
46	21
47	22
48	15
49	13
50	7
51	15
52	11
53	23
54	17
55	19
56	11
57	11
58	13
59	28
60	15
61	11
62	5
63	5
64	15
65	15
66	29
67	21
68	15
69	65
70	23
71	34
72	11
73	4
74	11
75	29
76	11
77	39
78	11
79	23
80	7
81	17