A324990 - cp's OEIS frontend

A324990 a(n) = the smallest number k such that floor(sigma(k)/tau(k)) = n, or 0 if no such number k exists.

n	a(n)
1	1
2	3
3	5
4	7
5	0
6	11
7	13
8	21
9	17
10	19
11	40
12	23
13	34
14	39
15	29
16	31
17	63
18	46
19	37
20	57
21	41
22	43
23	76
24	47
25	0
26	99
27	53
28	74
29	0
30	59
31	61
32	93
33	86
34	67
35	116
36	71
37	73
38	111
39	125
40	79
41	175
42	83
43	171
44	121
45	89
46	122
47	0
48	141
49	97
50	0
51	101
52	103
53	0
54	107
55	109
56	188
57	113
58	250
59	0
60	158
61	169
62	183
63	166

[1, 3, 5, 7, 0, 11, 13, 21, 17, 19, 40, 23, 34, 39, 29, 31, 63, 46, 37, 57, 41, 43, 76, 47, 0, 99, 53, 74, 0, 59, 61, 93, 86, 67, 116, 71, 73, 111, 125, 79, 175, 83, 171, 121, 89, 122, 0, 141, 97, 0, 101, 103, 0, 107, 109, 188, 113, 250, 0, 158, 169, 183, 166]

cp's OEIS Frontend

A324990 a(n) = the smallest number k such that floor(sigma(k)/tau(k)) = n, or 0 if no such number k exists.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	7
5	0
6	11
7	13
8	21
9	17
10	19
11	40
12	23
13	34
14	39
15	29
16	31
17	63
18	46
19	37
20	57
21	41
22	43
23	76
24	47
25	0
26	99
27	53
28	74
29	0
30	59
31	61
32	93
33	86
34	67
35	116
36	71
37	73
38	111
39	125
40	79
41	175
42	83
43	171
44	121
45	89
46	122
47	0
48	141
49	97
50	0
51	101
52	103
53	0
54	107
55	109
56	188
57	113
58	250
59	0
60	158
61	169
62	183
63	166

n	a(n)
1	1
2	3
3	5
4	7
5	0
6	11
7	13
8	21
9	17
10	19
11	40
12	23
13	34
14	39
15	29
16	31
17	63
18	46
19	37
20	57
21	41
22	43
23	76
24	47
25	0
26	99
27	53
28	74
29	0
30	59
31	61
32	93
33	86
34	67
35	116
36	71
37	73
38	111
39	125
40	79
41	175
42	83
43	171
44	121
45	89
46	122
47	0
48	141
49	97
50	0
51	101
52	103
53	0
54	107
55	109
56	188
57	113
58	250
59	0
60	158
61	169
62	183
63	166

n	a(n)
1	1
2	3
3	5
4	7
5	0
6	11
7	13
8	21
9	17
10	19
11	40
12	23
13	34
14	39
15	29
16	31
17	63
18	46
19	37
20	57
21	41
22	43
23	76
24	47
25	0
26	99
27	53
28	74
29	0
30	59
31	61
32	93
33	86
34	67
35	116
36	71
37	73
38	111
39	125
40	79
41	175
42	83
43	171
44	121
45	89
46	122
47	0
48	141
49	97
50	0
51	101
52	103
53	0
54	107
55	109
56	188
57	113
58	250
59	0
60	158
61	169
62	183
63	166