A242397 - cp's OEIS frontend

A242397 a(n) is the number of different bases b such that the Brazilian numbers A125134(n) remain a repdigit number.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	2
15	1
16	2
17	2
18	2
19	2
20	1
21	1
22	1
23	3
24	1
25	1
26	4
27	3
28	1
29	2
30	2
31	1
32	4
33	2
34	1
35	2
36	3
37	1
38	2
39	2
40	1
41	5
42	2
43	4
44	2
45	1
46	3
47	2
48	1
49	3
50	4
51	1
52	1
53	2
54	2
55	1
56	3
57	5
58	1
59	1
60	5
61	2
62	2
63	1
64	3
65	4
66	2
67	2
68	2
69	1
70	1
71	5
72	2
73	2
74	3
75	3
76	3
77	3
78	1
79	5
80	2
81	2
82	4
83	4
84	1
85	2
86	2
87	1

[1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 2, 1, 2, 2, 2, 2, 1, 1, 1, 3, 1, 1, 4, 3, 1, 2, 2, 1, 4, 2, 1, 2, 3, 1, 2, 2, 1, 5, 2, 4, 2, 1, 3, 2, 1, 3, 4, 1, 1, 2, 2, 1, 3, 5, 1, 1, 5, 2, 2, 1, 3, 4, 2, 2, 2, 1, 1, 5, 2, 2, 3, 3, 3, 3, 1, 5, 2, 2, 4, 4, 1, 2, 2, 1]

cp's OEIS Frontend

A242397 a(n) is the number of different bases b such that the Brazilian numbers A125134(n) remain a repdigit number.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	2
15	1
16	2
17	2
18	2
19	2
20	1
21	1
22	1
23	3
24	1
25	1
26	4
27	3
28	1
29	2
30	2
31	1
32	4
33	2
34	1
35	2
36	3
37	1
38	2
39	2
40	1
41	5
42	2
43	4
44	2
45	1
46	3
47	2
48	1
49	3
50	4
51	1
52	1
53	2
54	2
55	1
56	3
57	5
58	1
59	1
60	5
61	2
62	2
63	1
64	3
65	4
66	2
67	2
68	2
69	1
70	1
71	5
72	2
73	2
74	3
75	3
76	3
77	3
78	1
79	5
80	2
81	2
82	4
83	4
84	1
85	2
86	2
87	1

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	2
15	1
16	2
17	2
18	2
19	2
20	1
21	1
22	1
23	3
24	1
25	1
26	4
27	3
28	1
29	2
30	2
31	1
32	4
33	2
34	1
35	2
36	3
37	1
38	2
39	2
40	1
41	5
42	2
43	4
44	2
45	1
46	3
47	2
48	1
49	3
50	4
51	1
52	1
53	2
54	2
55	1
56	3
57	5
58	1
59	1
60	5
61	2
62	2
63	1
64	3
65	4
66	2
67	2
68	2
69	1
70	1
71	5
72	2
73	2
74	3
75	3
76	3
77	3
78	1
79	5
80	2
81	2
82	4
83	4
84	1
85	2
86	2
87	1

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	2
10	1
11	2
12	1
13	3
14	2
15	1
16	2
17	2
18	2
19	2
20	1
21	1
22	1
23	3
24	1
25	1
26	4
27	3
28	1
29	2
30	2
31	1
32	4
33	2
34	1
35	2
36	3
37	1
38	2
39	2
40	1
41	5
42	2
43	4
44	2
45	1
46	3
47	2
48	1
49	3
50	4
51	1
52	1
53	2
54	2
55	1
56	3
57	5
58	1
59	1
60	5
61	2
62	2
63	1
64	3
65	4
66	2
67	2
68	2
69	1
70	1
71	5
72	2
73	2
74	3
75	3
76	3
77	3
78	1
79	5
80	2
81	2
82	4
83	4
84	1
85	2
86	2
87	1