A007896 - cp's OEIS frontend

A007896 Psi_c(n), where Product_{k>1} 1/(1-1/k^s)^phi(k) = Sum_{k>0} psi_c(k)/k^s.

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	7
9	9
10	8
11	10
12	12
13	12
14	12
15	16
16	18
17	16
18	19
19	18
20	24
21	24
22	20
23	22
24	32
25	30
26	24
27	34
28	36
29	28
30	40
31	30
32	42
33	40
34	32
35	48
36	60
37	36
38	36
39	48
40	64
41	40
42	60
43	42
44	60
45	76
46	44
47	46
48	86
49	63
50	66
51	64
52	72
53	52
54	82
55	80
56	96
57	72
58	56
59	58
60	128
61	60
62	60
63	114
64	104
65	96
66	100

[1, 1, 2, 3, 4, 4, 6, 7, 9, 8, 10, 12, 12, 12, 16, 18, 16, 19, 18, 24, 24, 20, 22, 32, 30, 24, 34, 36, 28, 40, 30, 42, 40, 32, 48, 60, 36, 36, 48, 64, 40, 60, 42, 60, 76, 44, 46, 86, 63, 66, 64, 72, 52, 82, 80, 96, 72, 56, 58, 128, 60, 60, 114, 104, 96, 100]

cp's OEIS Frontend

A007896 Psi_c(n), where Product_{k>1} 1/(1-1/k^s)^phi(k) = Sum_{k>0} psi_c(k)/k^s.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	7
9	9
10	8
11	10
12	12
13	12
14	12
15	16
16	18
17	16
18	19
19	18
20	24
21	24
22	20
23	22
24	32
25	30
26	24
27	34
28	36
29	28
30	40
31	30
32	42
33	40
34	32
35	48
36	60
37	36
38	36
39	48
40	64
41	40
42	60
43	42
44	60
45	76
46	44
47	46
48	86
49	63
50	66
51	64
52	72
53	52
54	82
55	80
56	96
57	72
58	56
59	58
60	128
61	60
62	60
63	114
64	104
65	96
66	100

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	7
9	9
10	8
11	10
12	12
13	12
14	12
15	16
16	18
17	16
18	19
19	18
20	24
21	24
22	20
23	22
24	32
25	30
26	24
27	34
28	36
29	28
30	40
31	30
32	42
33	40
34	32
35	48
36	60
37	36
38	36
39	48
40	64
41	40
42	60
43	42
44	60
45	76
46	44
47	46
48	86
49	63
50	66
51	64
52	72
53	52
54	82
55	80
56	96
57	72
58	56
59	58
60	128
61	60
62	60
63	114
64	104
65	96
66	100

n	a(n)
1	1
2	1
3	2
4	3
5	4
6	4
7	6
8	7
9	9
10	8
11	10
12	12
13	12
14	12
15	16
16	18
17	16
18	19
19	18
20	24
21	24
22	20
23	22
24	32
25	30
26	24
27	34
28	36
29	28
30	40
31	30
32	42
33	40
34	32
35	48
36	60
37	36
38	36
39	48
40	64
41	40
42	60
43	42
44	60
45	76
46	44
47	46
48	86
49	63
50	66
51	64
52	72
53	52
54	82
55	80
56	96
57	72
58	56
59	58
60	128
61	60
62	60
63	114
64	104
65	96
66	100