A289437 - cp's OEIS frontend

A289437 The arithmetic function v_2(n,4).

n	a(n)
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	3
10	2
11	3
12	4
13	3
14	4
15	5
16	4
17	4
18	6
19	5
20	5
21	7
22	6
23	6
24	8
25	6
26	6
27	9
28	8
29	7
30	10
31	8
32	8
33	11
34	8
35	10
36	12
37	9
38	10
39	13
40	10
41	10
42	14
43	11
44	12
45	15
46	12
47	12
48	16
49	14
50	12
51	17
52	13
53	13
54	18
55	15
56	16
57	19
58	14
59	15
60	20
61	15
62	16
63	21
64	16
65	16
66	22
67	17
68	17
69	23
70	20

[0, 1, 1, 1, 2, 2, 2, 3, 2, 3, 4, 3, 4, 5, 4, 4, 6, 5, 5, 7, 6, 6, 8, 6, 6, 9, 8, 7, 10, 8, 8, 11, 8, 10, 12, 9, 10, 13, 10, 10, 14, 11, 12, 15, 12, 12, 16, 14, 12, 17, 13, 13, 18, 15, 16, 19, 14, 15, 20, 15, 16, 21, 16, 16, 22, 17, 17, 23, 20]

cp's OEIS Frontend

A289437 The arithmetic function v_2(n,4).

Table of values

List of values

n	a(n)
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	3
10	2
11	3
12	4
13	3
14	4
15	5
16	4
17	4
18	6
19	5
20	5
21	7
22	6
23	6
24	8
25	6
26	6
27	9
28	8
29	7
30	10
31	8
32	8
33	11
34	8
35	10
36	12
37	9
38	10
39	13
40	10
41	10
42	14
43	11
44	12
45	15
46	12
47	12
48	16
49	14
50	12
51	17
52	13
53	13
54	18
55	15
56	16
57	19
58	14
59	15
60	20
61	15
62	16
63	21
64	16
65	16
66	22
67	17
68	17
69	23
70	20

n	a(n)
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	3
10	2
11	3
12	4
13	3
14	4
15	5
16	4
17	4
18	6
19	5
20	5
21	7
22	6
23	6
24	8
25	6
26	6
27	9
28	8
29	7
30	10
31	8
32	8
33	11
34	8
35	10
36	12
37	9
38	10
39	13
40	10
41	10
42	14
43	11
44	12
45	15
46	12
47	12
48	16
49	14
50	12
51	17
52	13
53	13
54	18
55	15
56	16
57	19
58	14
59	15
60	20
61	15
62	16
63	21
64	16
65	16
66	22
67	17
68	17
69	23
70	20

n	a(n)
2	0
3	1
4	1
5	1
6	2
7	2
8	2
9	3
10	2
11	3
12	4
13	3
14	4
15	5
16	4
17	4
18	6
19	5
20	5
21	7
22	6
23	6
24	8
25	6
26	6
27	9
28	8
29	7
30	10
31	8
32	8
33	11
34	8
35	10
36	12
37	9
38	10
39	13
40	10
41	10
42	14
43	11
44	12
45	15
46	12
47	12
48	16
49	14
50	12
51	17
52	13
53	13
54	18
55	15
56	16
57	19
58	14
59	15
60	20
61	15
62	16
63	21
64	16
65	16
66	22
67	17
68	17
69	23
70	20