A086765 - cp's OEIS frontend

A086765 Number of positive coefficients in n-th cyclotomic polynomial.

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

[1, 2, 3, 2, 5, 2, 7, 2, 3, 3, 11, 2, 13, 4, 4, 2, 17, 2, 19, 3, 5, 6, 23, 2, 5, 7, 3, 4, 29, 4, 31, 2, 8, 9, 9, 2, 37, 10, 9, 3, 41, 5, 43, 6, 4, 12, 47, 2, 7, 3, 12, 7, 53, 2, 9, 4, 13, 15, 59, 4, 61, 16, 5, 2, 16, 8, 67, 9, 16, 9, 71, 2, 73, 19, 4, 10, 16, 9, 79, 3, 3, 21, 83, 5, 21, 22, 20, 6]

cp's OEIS Frontend

A086765 Number of positive coefficients in n-th cyclotomic polynomial.

Table of values

List of values

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

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

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