A170943 - cp's OEIS frontend

A170943 Numbers n with the property that when 1/n is written in base 3 (in either of the two representations, if the representation is ambiguous) the fractional part contains no 1's.

n	a(n)
1	1
2	4
3	10
4	12
5	13
6	28
7	30
8	36
9	39
10	40
11	82
12	84
13	90
14	91
15	108
16	117
17	120
18	121
19	244
20	246
21	252
22	270
23	273
24	324
25	328
26	351
27	360
28	363
29	364
30	730
31	732
32	738
33	756
34	757
35	810
36	819
37	820
38	949
39	972
40	984
41	1036
42	1053
43	1080
44	1089
45	1092
46	1093
47	2188
48	2190
49	2196
50	2214
51	2268
52	2271
53	2362
54	2430

[1, 4, 10, 12, 13, 28, 30, 36, 39, 40, 82, 84, 90, 91, 108, 117, 120, 121, 244, 246, 252, 270, 273, 324, 328, 351, 360, 363, 364, 730, 732, 738, 756, 757, 810, 819, 820, 949, 972, 984, 1036, 1053, 1080, 1089, 1092, 1093, 2188, 2190, 2196, 2214, 2268, 2271, 2362, 2430]

cp's OEIS Frontend

A170943 Numbers n with the property that when 1/n is written in base 3 (in either of the two representations, if the representation is ambiguous) the fractional part contains no 1's.

Table of values

List of values