A382946 - cp's OEIS frontend

A382946 a(n) is the least positive integer k having a proper divisor d such that the base n expansions of k and d, without leading zeros, have, up to order, the same digits, or a(n) = -1 if no such k exists.

n	a(n)
2	-1
3	64
4	36
5	16
6	700
7	36
8	42
9	64
10	3105
11	45
12	594
13	105
14	130
15	168
16	945
17	120
18	1666
19	96
20	266
21	275
22	2457
23	231
24	460
25	351
26	450
27	273
28	7938
29	175
30	7714
31	280
32	682
33	1024
34	308
35	459
36	7525
37	741
38	962
39	665
40	27300
41	288
42	17097
43	560
44	1290
45	1265
46	18540
47	1035
48	1974
49	540
50	952
51	715

[-1, 64, 36, 16, 700, 36, 42, 64, 3105, 45, 594, 105, 130, 168, 945, 120, 1666, 96, 266, 275, 2457, 231, 460, 351, 450, 273, 7938, 175, 7714, 280, 682, 1024, 308, 459, 7525, 741, 962, 665, 27300, 288, 17097, 560, 1290, 1265, 18540, 1035, 1974, 540, 952, 715]

cp's OEIS Frontend

A382946 a(n) is the least positive integer k having a proper divisor d such that the base n expansions of k and d, without leading zeros, have, up to order, the same digits, or a(n) = -1 if no such k exists.

Table of values

List of values