A318442 - cp's OEIS frontend

A318442 a(n) = Sum_{d|n} [moebius(n/d) < 0]*A033879(d).

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

[0, 1, 1, 1, 1, 3, 1, 1, 2, 5, 1, 1, 1, 7, 6, 1, 1, 5, 1, 3, 8, 11, 1, -3, 4, 13, 5, 5, 1, 9, 1, 1, 12, 17, 10, -7, 1, 19, 14, -1, 1, 15, 1, 9, 11, 23, 1, -11, 6, 21, 18, 11, 1, 11, 14, 1, 20, 29, 1, -17, 1, 31, 15, 1, 16, 27, 1, 15, 24, 29, 1, -31, 1, 37, 25, 17, 16, 33, 1, -9, 14, 41, 1, -15, 20, 43, 30, 5, 1, -1, 18, 21, 32, 47, 22, -27, 1]

cp's OEIS Frontend

A318442 a(n) = Sum_{d|n} [moebius(n/d) < 0]*A033879(d).

Table of values

List of values

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

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

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