A320109 - cp's OEIS frontend

A320109 Filter sequence for counting the residue classes mod 8 of divisors of n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	3
12	11
13	5
14	12
15	13
16	14
17	15
18	16
19	3
20	17
21	13
22	6
23	7
24	18
25	19
26	10
27	20
28	21
29	5
30	22
31	7
32	23
33	20
34	24
35	13
36	25
37	5
38	6
39	13
40	26
41	15
42	22
43	3
44	11
45	27
46	12
47	7
48	28
49	29
50	30
51	20
52	17
53	5
54	31
55	13
56	32
57	20
58	10
59	3
60	33
61	5
62	12
63	34
64	35
65	36
66	31
67	3
68	37
69	13
70	22
71	7
72	38
73	15
74	10
75	39
76	11
77	13
78	22
79	7
80	40
81	41
82	24
83	3
84	33
85	36
86	6
87	13
88	18
89	15
90	42
91	13
92	21
93	13
94	12
95	13
96	43
97	15
98	44
99	45
100	46
101	5
102	31
103	7
104	26

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 3, 11, 5, 12, 13, 14, 15, 16, 3, 17, 13, 6, 7, 18, 19, 10, 20, 21, 5, 22, 7, 23, 20, 24, 13, 25, 5, 6, 13, 26, 15, 22, 3, 11, 27, 12, 7, 28, 29, 30, 20, 17, 5, 31, 13, 32, 20, 10, 3, 33, 5, 12, 34, 35, 36, 31, 3, 37, 13, 22, 7, 38, 15, 10, 39, 11, 13, 22, 7, 40, 41, 24, 3, 33, 36, 6, 13, 18, 15, 42, 13, 21, 13, 12, 13, 43, 15, 44, 45, 46, 5, 31, 7, 26]

cp's OEIS Frontend

A320109 Filter sequence for counting the residue classes mod 8 of divisors of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	3
12	11
13	5
14	12
15	13
16	14
17	15
18	16
19	3
20	17
21	13
22	6
23	7
24	18
25	19
26	10
27	20
28	21
29	5
30	22
31	7
32	23
33	20
34	24
35	13
36	25
37	5
38	6
39	13
40	26
41	15
42	22
43	3
44	11
45	27
46	12
47	7
48	28
49	29
50	30
51	20
52	17
53	5
54	31
55	13
56	32
57	20
58	10
59	3
60	33
61	5
62	12
63	34
64	35
65	36
66	31
67	3
68	37
69	13
70	22
71	7
72	38
73	15
74	10
75	39
76	11
77	13
78	22
79	7
80	40
81	41
82	24
83	3
84	33
85	36
86	6
87	13
88	18
89	15
90	42
91	13
92	21
93	13
94	12
95	13
96	43
97	15
98	44
99	45
100	46
101	5
102	31
103	7
104	26

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	3
12	11
13	5
14	12
15	13
16	14
17	15
18	16
19	3
20	17
21	13
22	6
23	7
24	18
25	19
26	10
27	20
28	21
29	5
30	22
31	7
32	23
33	20
34	24
35	13
36	25
37	5
38	6
39	13
40	26
41	15
42	22
43	3
44	11
45	27
46	12
47	7
48	28
49	29
50	30
51	20
52	17
53	5
54	31
55	13
56	32
57	20
58	10
59	3
60	33
61	5
62	12
63	34
64	35
65	36
66	31
67	3
68	37
69	13
70	22
71	7
72	38
73	15
74	10
75	39
76	11
77	13
78	22
79	7
80	40
81	41
82	24
83	3
84	33
85	36
86	6
87	13
88	18
89	15
90	42
91	13
92	21
93	13
94	12
95	13
96	43
97	15
98	44
99	45
100	46
101	5
102	31
103	7
104	26

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	3
12	11
13	5
14	12
15	13
16	14
17	15
18	16
19	3
20	17
21	13
22	6
23	7
24	18
25	19
26	10
27	20
28	21
29	5
30	22
31	7
32	23
33	20
34	24
35	13
36	25
37	5
38	6
39	13
40	26
41	15
42	22
43	3
44	11
45	27
46	12
47	7
48	28
49	29
50	30
51	20
52	17
53	5
54	31
55	13
56	32
57	20
58	10
59	3
60	33
61	5
62	12
63	34
64	35
65	36
66	31
67	3
68	37
69	13
70	22
71	7
72	38
73	15
74	10
75	39
76	11
77	13
78	22
79	7
80	40
81	41
82	24
83	3
84	33
85	36
86	6
87	13
88	18
89	15
90	42
91	13
92	21
93	13
94	12
95	13
96	43
97	15
98	44
99	45
100	46
101	5
102	31
103	7
104	26