A320013 - cp's OEIS frontend

A320013 Filter sequence constructed from the binary expansions of those proper divisors of n that are not multiples of 3.

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	2
10	5
11	2
12	4
13	2
14	6
15	7
16	8
17	2
18	3
19	2
20	9
21	10
22	11
23	2
24	8
25	7
26	12
27	2
28	13
29	2
30	14
31	2
32	15
33	16
34	17
35	18
36	4
37	2
38	19
39	20
40	21
41	2
42	22
43	2
44	23
45	7
46	24
47	2
48	15
49	10
50	25
51	26
52	27
53	2
54	3
55	28
56	29
57	30
58	31
59	2
60	32
61	2
62	33
63	10
64	34
65	35
66	36
67	2
68	37
69	38
70	39
71	2
72	8
73	2
74	40
75	41
76	42
77	43
78	44
79	2
80	45
81	2
82	46
83	2
84	47
85	48
86	49
87	50
88	51
89	2
90	14
91	52
92	53
93	54
94	55
95	56
96	34
97	2
98	57
99	16
100	58
101	2
102	59
103	2
104	60
105	61

[1, 2, 2, 3, 2, 3, 2, 4, 2, 5, 2, 4, 2, 6, 7, 8, 2, 3, 2, 9, 10, 11, 2, 8, 7, 12, 2, 13, 2, 14, 2, 15, 16, 17, 18, 4, 2, 19, 20, 21, 2, 22, 2, 23, 7, 24, 2, 15, 10, 25, 26, 27, 2, 3, 28, 29, 30, 31, 2, 32, 2, 33, 10, 34, 35, 36, 2, 37, 38, 39, 2, 8, 2, 40, 41, 42, 43, 44, 2, 45, 2, 46, 2, 47, 48, 49, 50, 51, 2, 14, 52, 53, 54, 55, 56, 34, 2, 57, 16, 58, 2, 59, 2, 60, 61]

cp's OEIS Frontend

A320013 Filter sequence constructed from the binary expansions of those proper divisors of n that are not multiples of 3.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	2
10	5
11	2
12	4
13	2
14	6
15	7
16	8
17	2
18	3
19	2
20	9
21	10
22	11
23	2
24	8
25	7
26	12
27	2
28	13
29	2
30	14
31	2
32	15
33	16
34	17
35	18
36	4
37	2
38	19
39	20
40	21
41	2
42	22
43	2
44	23
45	7
46	24
47	2
48	15
49	10
50	25
51	26
52	27
53	2
54	3
55	28
56	29
57	30
58	31
59	2
60	32
61	2
62	33
63	10
64	34
65	35
66	36
67	2
68	37
69	38
70	39
71	2
72	8
73	2
74	40
75	41
76	42
77	43
78	44
79	2
80	45
81	2
82	46
83	2
84	47
85	48
86	49
87	50
88	51
89	2
90	14
91	52
92	53
93	54
94	55
95	56
96	34
97	2
98	57
99	16
100	58
101	2
102	59
103	2
104	60
105	61

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	2
10	5
11	2
12	4
13	2
14	6
15	7
16	8
17	2
18	3
19	2
20	9
21	10
22	11
23	2
24	8
25	7
26	12
27	2
28	13
29	2
30	14
31	2
32	15
33	16
34	17
35	18
36	4
37	2
38	19
39	20
40	21
41	2
42	22
43	2
44	23
45	7
46	24
47	2
48	15
49	10
50	25
51	26
52	27
53	2
54	3
55	28
56	29
57	30
58	31
59	2
60	32
61	2
62	33
63	10
64	34
65	35
66	36
67	2
68	37
69	38
70	39
71	2
72	8
73	2
74	40
75	41
76	42
77	43
78	44
79	2
80	45
81	2
82	46
83	2
84	47
85	48
86	49
87	50
88	51
89	2
90	14
91	52
92	53
93	54
94	55
95	56
96	34
97	2
98	57
99	16
100	58
101	2
102	59
103	2
104	60
105	61

n	a(n)
1	1
2	2
3	2
4	3
5	2
6	3
7	2
8	4
9	2
10	5
11	2
12	4
13	2
14	6
15	7
16	8
17	2
18	3
19	2
20	9
21	10
22	11
23	2
24	8
25	7
26	12
27	2
28	13
29	2
30	14
31	2
32	15
33	16
34	17
35	18
36	4
37	2
38	19
39	20
40	21
41	2
42	22
43	2
44	23
45	7
46	24
47	2
48	15
49	10
50	25
51	26
52	27
53	2
54	3
55	28
56	29
57	30
58	31
59	2
60	32
61	2
62	33
63	10
64	34
65	35
66	36
67	2
68	37
69	38
70	39
71	2
72	8
73	2
74	40
75	41
76	42
77	43
78	44
79	2
80	45
81	2
82	46
83	2
84	47
85	48
86	49
87	50
88	51
89	2
90	14
91	52
92	53
93	54
94	55
95	56
96	34
97	2
98	57
99	16
100	58
101	2
102	59
103	2
104	60
105	61