A236366 - cp's OEIS frontend

A236366 a(n) is the concatenation of the numbers k, 2 <= k <= 9, such that the base-k representation of n is a palindrome; a(n) = 0 if there is no such base.

n	a(n)
1	23456789
2	3456789
3	2456789
4	356789
5	246789
6	5789
7	2689
8	379
9	28
10	349
11	0
12	5
13	3
14	6
15	24
16	37
17	24
18	58
19	0
20	39
21	246
22	0
23	3
24	57
25	4
26	35
27	28
28	36
29	4
30	9
31	25
32	7
33	2
34	4
35	6
36	58
37	6
38	4
39	0
40	379
41	5
42	4
43	6
44	0
45	28
46	45
47	0
48	7
49	6
50	79
51	24
52	35
53	0
54	8
55	46
56	3
57	57
58	0
59	4
60	9
61	6
62	5
63	248
64	7
65	248

[23456789, 3456789, 2456789, 356789, 246789, 5789, 2689, 379, 28, 349, 0, 5, 3, 6, 24, 37, 24, 58, 0, 39, 246, 0, 3, 57, 4, 35, 28, 36, 4, 9, 25, 7, 2, 4, 6, 58, 6, 4, 0, 379, 5, 4, 6, 0, 28, 45, 0, 7, 6, 79, 24, 35, 0, 8, 46, 3, 57, 0, 4, 9, 6, 5, 248, 7, 248]

cp's OEIS Frontend

A236366 a(n) is the concatenation of the numbers k, 2 <= k <= 9, such that the base-k representation of n is a palindrome; a(n) = 0 if there is no such base.

Table of values

List of values