A298982 - cp's OEIS frontend

A298982 a(n) is the least k for which the most significant decimal digits of k/n (disregarding any leading zeros) are n, or 0 if no such k exists.

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	4
7	5
8	7
9	0
10	1
11	0
12	0
13	0
14	2
15	0
16	0
17	3
18	0
19	0
20	4
21	0
22	5
23	0
24	0
25	0
26	7
27	0
28	8
29	0
30	9
31	0
32	0
33	11
34	0
35	0
36	13
37	14
38	0
39	0
40	16
41	17
42	18
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	25
51	0
52	0
53	0
54	0
55	0
56	0
57	33
58	34
59	35
60	36
61	0
62	39
63	4
64	41
65	0
66	44
67	45
68	0
69	48
70	49
71	51
72	52
73	54
74	55
75	0
76	58
77	6
78	61
79	63
80	64
81	66
82	68
83	69
84	71
85	73
86	74
87	76
88	78
89	8
90	81
91	83
92	85
93	87
94	89
95	91
96	93
97	95
98	97
99	0
100	1

[0, 0, 1, 0, 0, 4, 5, 7, 0, 1, 0, 0, 0, 2, 0, 0, 3, 0, 0, 4, 0, 5, 0, 0, 0, 7, 0, 8, 0, 9, 0, 0, 11, 0, 0, 13, 14, 0, 0, 16, 17, 18, 0, 0, 0, 0, 0, 0, 0, 25, 0, 0, 0, 0, 0, 0, 33, 34, 35, 36, 0, 39, 4, 41, 0, 44, 45, 0, 48, 49, 51, 52, 54, 55, 0, 58, 6, 61, 63, 64, 66, 68, 69, 71, 73, 74, 76, 78, 8, 81, 83, 85, 87, 89, 91, 93, 95, 97, 0, 1]

cp's OEIS Frontend

A298982 a(n) is the least k for which the most significant decimal digits of k/n (disregarding any leading zeros) are n, or 0 if no such k exists.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	4
7	5
8	7
9	0
10	1
11	0
12	0
13	0
14	2
15	0
16	0
17	3
18	0
19	0
20	4
21	0
22	5
23	0
24	0
25	0
26	7
27	0
28	8
29	0
30	9
31	0
32	0
33	11
34	0
35	0
36	13
37	14
38	0
39	0
40	16
41	17
42	18
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	25
51	0
52	0
53	0
54	0
55	0
56	0
57	33
58	34
59	35
60	36
61	0
62	39
63	4
64	41
65	0
66	44
67	45
68	0
69	48
70	49
71	51
72	52
73	54
74	55
75	0
76	58
77	6
78	61
79	63
80	64
81	66
82	68
83	69
84	71
85	73
86	74
87	76
88	78
89	8
90	81
91	83
92	85
93	87
94	89
95	91
96	93
97	95
98	97
99	0
100	1

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	4
7	5
8	7
9	0
10	1
11	0
12	0
13	0
14	2
15	0
16	0
17	3
18	0
19	0
20	4
21	0
22	5
23	0
24	0
25	0
26	7
27	0
28	8
29	0
30	9
31	0
32	0
33	11
34	0
35	0
36	13
37	14
38	0
39	0
40	16
41	17
42	18
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	25
51	0
52	0
53	0
54	0
55	0
56	0
57	33
58	34
59	35
60	36
61	0
62	39
63	4
64	41
65	0
66	44
67	45
68	0
69	48
70	49
71	51
72	52
73	54
74	55
75	0
76	58
77	6
78	61
79	63
80	64
81	66
82	68
83	69
84	71
85	73
86	74
87	76
88	78
89	8
90	81
91	83
92	85
93	87
94	89
95	91
96	93
97	95
98	97
99	0
100	1

n	a(n)
1	0
2	0
3	1
4	0
5	0
6	4
7	5
8	7
9	0
10	1
11	0
12	0
13	0
14	2
15	0
16	0
17	3
18	0
19	0
20	4
21	0
22	5
23	0
24	0
25	0
26	7
27	0
28	8
29	0
30	9
31	0
32	0
33	11
34	0
35	0
36	13
37	14
38	0
39	0
40	16
41	17
42	18
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	25
51	0
52	0
53	0
54	0
55	0
56	0
57	33
58	34
59	35
60	36
61	0
62	39
63	4
64	41
65	0
66	44
67	45
68	0
69	48
70	49
71	51
72	52
73	54
74	55
75	0
76	58
77	6
78	61
79	63
80	64
81	66
82	68
83	69
84	71
85	73
86	74
87	76
88	78
89	8
90	81
91	83
92	85
93	87
94	89
95	91
96	93
97	95
98	97
99	0
100	1