A375350 - cp's OEIS frontend

A375350 a(n) is the smallest number k such that the sum of the bases b, 1 < b < k-1, for which k is palindromic, equals n . If no such number exists, a(n) = -1.

n	a(n)
2	5
3	8
4	25
5	12
6	14
7	10
8	89
9	107
10	16
11	67
12	20
13	18
14	109
15	331
16	187
17	227
18	95
19	157
20	26
21	409
22	28
23	24
24	45
25	191
26	65
27	241
28	58
29	85
30	57
31	44
32	161
33	299
34	63
35	62
36	401
37	42
38	40
39	337
40	50
41	36
42	74
43	56
44	99
45	52
46	94
47	1129
48	86
49	145
50	129
51	54
52	68
53	64
54	1613
55	76
56	48
57	1073
58	175
59	533
60	559
61	341

[5, 8, 25, 12, 14, 10, 89, 107, 16, 67, 20, 18, 109, 331, 187, 227, 95, 157, 26, 409, 28, 24, 45, 191, 65, 241, 58, 85, 57, 44, 161, 299, 63, 62, 401, 42, 40, 337, 50, 36, 74, 56, 99, 52, 94, 1129, 86, 145, 129, 54, 68, 64, 1613, 76, 48, 1073, 175, 533, 559, 341]

cp's OEIS Frontend

A375350 a(n) is the smallest number k such that the sum of the bases b, 1 < b < k-1, for which k is palindromic, equals n . If no such number exists, a(n) = -1.

Table of values

List of values