A052039 - cp's OEIS frontend

A052039 a(n) is the smallest k such that the first significant digits of 1/k coincide with n.

n	a(n)
1	1
2	4
3	3
4	21
5	2
6	15
7	13
8	12
9	11
10	91
11	9
12	8
13	72
14	7
15	63
16	6
17	56
18	53
19	51
20	48
21	46
22	44
23	42
24	41
25	4
26	38
27	36
28	35
29	34
30	33
31	32
32	31
33	3
34	29
35	28
36	271
37	27
38	26
39	251
40	244
41	24
42	233
43	23
44	223
45	22
46	213
47	21
48	205
49	201
50	197
51	193
52	19
53	186
54	182
55	18
56	176
57	173
58	17
59	167
60	164
61	162
62	16
63	157
64	154
65	152

[1, 4, 3, 21, 2, 15, 13, 12, 11, 91, 9, 8, 72, 7, 63, 6, 56, 53, 51, 48, 46, 44, 42, 41, 4, 38, 36, 35, 34, 33, 32, 31, 3, 29, 28, 271, 27, 26, 251, 244, 24, 233, 23, 223, 22, 213, 21, 205, 201, 197, 193, 19, 186, 182, 18, 176, 173, 17, 167, 164, 162, 16, 157, 154, 152]

cp's OEIS Frontend

A052039 a(n) is the smallest k such that the first significant digits of 1/k coincide with n.

Table of values

List of values

n	a(n)
1	1
2	4
3	3
4	21
5	2
6	15
7	13
8	12
9	11
10	91
11	9
12	8
13	72
14	7
15	63
16	6
17	56
18	53
19	51
20	48
21	46
22	44
23	42
24	41
25	4
26	38
27	36
28	35
29	34
30	33
31	32
32	31
33	3
34	29
35	28
36	271
37	27
38	26
39	251
40	244
41	24
42	233
43	23
44	223
45	22
46	213
47	21
48	205
49	201
50	197
51	193
52	19
53	186
54	182
55	18
56	176
57	173
58	17
59	167
60	164
61	162
62	16
63	157
64	154
65	152

n	a(n)
1	1
2	4
3	3
4	21
5	2
6	15
7	13
8	12
9	11
10	91
11	9
12	8
13	72
14	7
15	63
16	6
17	56
18	53
19	51
20	48
21	46
22	44
23	42
24	41
25	4
26	38
27	36
28	35
29	34
30	33
31	32
32	31
33	3
34	29
35	28
36	271
37	27
38	26
39	251
40	244
41	24
42	233
43	23
44	223
45	22
46	213
47	21
48	205
49	201
50	197
51	193
52	19
53	186
54	182
55	18
56	176
57	173
58	17
59	167
60	164
61	162
62	16
63	157
64	154
65	152

n	a(n)
1	1
2	4
3	3
4	21
5	2
6	15
7	13
8	12
9	11
10	91
11	9
12	8
13	72
14	7
15	63
16	6
17	56
18	53
19	51
20	48
21	46
22	44
23	42
24	41
25	4
26	38
27	36
28	35
29	34
30	33
31	32
32	31
33	3
34	29
35	28
36	271
37	27
38	26
39	251
40	244
41	24
42	233
43	23
44	223
45	22
46	213
47	21
48	205
49	201
50	197
51	193
52	19
53	186
54	182
55	18
56	176
57	173
58	17
59	167
60	164
61	162
62	16
63	157
64	154
65	152