A178503 - cp's OEIS frontend

A178503 n minus totally additive with a(p)=PrimePi(p), where PrimePi(n)=A000720(n).

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

[1, 1, 1, 2, 2, 3, 3, 5, 5, 6, 6, 8, 7, 9, 10, 12, 10, 13, 11, 15, 15, 16, 14, 19, 19, 19, 21, 22, 19, 24, 20, 27, 26, 26, 28, 30, 25, 29, 31, 34, 28, 35, 29, 37, 38, 36, 32, 42, 41, 43, 42, 44, 37, 47, 47, 49, 47, 47, 42, 53, 43, 50, 55, 58, 56, 58, 48, 59, 58, 62, 51, 65, 52, 61]

cp's OEIS Frontend

A178503 n minus totally additive with a(p)=PrimePi(p), where PrimePi(n)=A000720(n).

Table of values

List of values

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

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

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