A261172 - cp's OEIS frontend

A261172 Value of b for which A260871(n) = A[b](k), with k = A261171(n); A[b](k) = the number whose base-b representation is the concatenation of the base-b representations of (1, ..., k, k-1, ..., 1).

n	a(n)
1	2
2	3
3	2
4	4
5	3
6	6
7	9
8	10
9	11
10	16
11	12
12	14
13	22
14	18
15	25
16	20
17	2
18	6
19	18
20	14
21	7
22	40
23	31
24	25
25	23
26	20
27	22
28	62
29	65
30	68
31	29
32	23
33	38
34	26
35	104
36	6
37	34
38	52

[2, 3, 2, 4, 3, 6, 9, 10, 11, 16, 12, 14, 22, 18, 25, 20, 2, 6, 18, 14, 7, 40, 31, 25, 23, 20, 22, 62, 65, 68, 29, 23, 38, 26, 104, 6, 34, 52]