A368866 - cp's OEIS frontend

A368866 The smallest positive number such that 2^a(n) when written in base n contains adjacent equal digits.

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

[2, 2, 4, 5, 6, 3, 6, 12, 16, 14, 11, 15, 8, 4, 8, 23, 16, 14, 16, 21, 9, 17, 20, 14, 30, 27, 16, 15, 10, 5, 10, 29, 48, 14, 46, 19, 18, 15, 32, 36, 27, 36, 18, 12, 56, 41, 37, 24, 58, 22, 26, 46, 58, 40, 29, 24, 36, 14, 20, 18, 12, 6, 12, 60, 62, 50, 49, 50, 20, 35, 36, 55, 61, 52, 53, 77]

cp's OEIS Frontend

A368866 The smallest positive number such that 2^a(n) when written in base n contains adjacent equal digits.

Table of values

List of values

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

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

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