A242789 - cp's OEIS frontend

A242789 Least number k > 1 such that (k^k-n)/(k-n) is an integer.

n	a(n)
1	2
2	3
3	2
4	2
5	3
6	3
7	3
8	4
9	3
10	4
11	3
12	6
13	4
14	7
15	3
16	4
17	5
18	4
19	7
20	5
21	5
22	4
23	7
24	9
25	4
26	7
27	3
28	7
29	5
30	13
31	5
32	4
33	9
34	12
35	5
36	6
37	10
38	16
39	9
40	4
41	9
42	16
43	7
44	5
45	5
46	4
47	10
48	13
49	7
50	7
51	11
52	13
53	5
54	9
55	7
56	6
57	5
58	12
59	19
60	9
61	11
62	17
63	7
64	7
65	5
66	11
67	4
68	16
69	9
70	5
71	11
72	16
73	9
74	13
75	15
76	13
77	9
78	12
79	7
80	31
81	6
82	16
83	5

[2, 3, 2, 2, 3, 3, 3, 4, 3, 4, 3, 6, 4, 7, 3, 4, 5, 4, 7, 5, 5, 4, 7, 9, 4, 7, 3, 7, 5, 13, 5, 4, 9, 12, 5, 6, 10, 16, 9, 4, 9, 16, 7, 5, 5, 4, 10, 13, 7, 7, 11, 13, 5, 9, 7, 6, 5, 12, 19, 9, 11, 17, 7, 7, 5, 11, 4, 16, 9, 5, 11, 16, 9, 13, 15, 13, 9, 12, 7, 31, 6, 16, 5]

cp's OEIS Frontend

A242789 Least number k > 1 such that (k^k-n)/(k-n) is an integer.

Table of values

List of values

n	a(n)
1	2
2	3
3	2
4	2
5	3
6	3
7	3
8	4
9	3
10	4
11	3
12	6
13	4
14	7
15	3
16	4
17	5
18	4
19	7
20	5
21	5
22	4
23	7
24	9
25	4
26	7
27	3
28	7
29	5
30	13
31	5
32	4
33	9
34	12
35	5
36	6
37	10
38	16
39	9
40	4
41	9
42	16
43	7
44	5
45	5
46	4
47	10
48	13
49	7
50	7
51	11
52	13
53	5
54	9
55	7
56	6
57	5
58	12
59	19
60	9
61	11
62	17
63	7
64	7
65	5
66	11
67	4
68	16
69	9
70	5
71	11
72	16
73	9
74	13
75	15
76	13
77	9
78	12
79	7
80	31
81	6
82	16
83	5

n	a(n)
1	2
2	3
3	2
4	2
5	3
6	3
7	3
8	4
9	3
10	4
11	3
12	6
13	4
14	7
15	3
16	4
17	5
18	4
19	7
20	5
21	5
22	4
23	7
24	9
25	4
26	7
27	3
28	7
29	5
30	13
31	5
32	4
33	9
34	12
35	5
36	6
37	10
38	16
39	9
40	4
41	9
42	16
43	7
44	5
45	5
46	4
47	10
48	13
49	7
50	7
51	11
52	13
53	5
54	9
55	7
56	6
57	5
58	12
59	19
60	9
61	11
62	17
63	7
64	7
65	5
66	11
67	4
68	16
69	9
70	5
71	11
72	16
73	9
74	13
75	15
76	13
77	9
78	12
79	7
80	31
81	6
82	16
83	5

n	a(n)
1	2
2	3
3	2
4	2
5	3
6	3
7	3
8	4
9	3
10	4
11	3
12	6
13	4
14	7
15	3
16	4
17	5
18	4
19	7
20	5
21	5
22	4
23	7
24	9
25	4
26	7
27	3
28	7
29	5
30	13
31	5
32	4
33	9
34	12
35	5
36	6
37	10
38	16
39	9
40	4
41	9
42	16
43	7
44	5
45	5
46	4
47	10
48	13
49	7
50	7
51	11
52	13
53	5
54	9
55	7
56	6
57	5
58	12
59	19
60	9
61	11
62	17
63	7
64	7
65	5
66	11
67	4
68	16
69	9
70	5
71	11
72	16
73	9
74	13
75	15
76	13
77	9
78	12
79	7
80	31
81	6
82	16
83	5