A330734 - cp's OEIS frontend

A330734 a(n) = n - A309639(n), where A309639(n) is the index of the least harmonic number H_i whose denominator (A002805) is divisible by n.

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

[0, 0, 0, 0, 0, 3, 0, 0, 0, 5, 0, 8, 0, 7, 10, 0, 0, 9, 0, 15, 12, 11, 0, 15, 0, 13, 0, 21, 0, 25, 0, 0, 22, 17, 28, 27, 0, 19, 26, 32, 0, 33, 0, 33, 36, 23, 0, 32, 0, 25, 34, 39, 0, 27, 44, 48, 38, 29, 0, 55, 0, 31, 54, 0, 52, 55, 0, 51, 45, 63, 0, 63, 0, 37, 50, 57, 66, 65, 0, 64, 0, 41, 0, 75, 68, 43, 58, 77, 0, 81]

cp's OEIS Frontend

A330734 a(n) = n - A309639(n), where A309639(n) is the index of the least harmonic number H_i whose denominator (A002805) is divisible by n.

Table of values

List of values

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

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

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