A338128 - cp's OEIS frontend

A338128 a(n) is the least k > 1 such that the base n representation of k^k ends with that of k.

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

[3, 4, 3, 6, 3, 4, 3, 4, 5, 12, 3, 5, 4, 5, 5, 9, 4, 7, 5, 4, 11, 12, 3, 6, 5, 10, 4, 17, 5, 16, 9, 11, 9, 13, 4, 10, 7, 5, 5, 9, 4, 7, 11, 9, 12, 24, 5, 8, 6, 9, 5, 54, 10, 11, 7, 7, 17, 60, 5, 13, 16, 4, 9, 5, 11, 37, 9, 12, 13, 36, 7, 37, 10, 6, 7, 16, 5, 27]

cp's OEIS Frontend

A338128 a(n) is the least k > 1 such that the base n representation of k^k ends with that of k.

Table of values

List of values

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

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

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