A300245 - cp's OEIS frontend

A300245 Filter sequence combining arithmetic derivative (A003415) with its Möbius transform (A300251).

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

[1, 2, 2, 3, 2, 4, 2, 5, 6, 7, 2, 8, 2, 9, 10, 11, 2, 12, 2, 13, 14, 15, 2, 16, 17, 18, 19, 11, 2, 20, 2, 21, 22, 23, 24, 25, 2, 26, 27, 28, 2, 29, 2, 30, 31, 32, 2, 33, 34, 35, 36, 37, 2, 38, 27, 39, 40, 41, 2, 42, 2, 43, 44, 45, 46, 47, 2, 48, 49, 50, 2, 51, 2, 52, 53, 54, 46, 55, 2, 56, 57, 58, 2, 59, 40, 60, 61, 62, 2, 63, 36, 64, 65, 66]

cp's OEIS Frontend

A300245 Filter sequence combining arithmetic derivative (A003415) with its Möbius transform (A300251).

Table of values

List of values

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

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

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