A193388 - cp's OEIS frontend

A193388 Sum of even divisors of phi(n).

n	a(n)
1	0
2	0
3	2
4	2
5	6
6	2
7	8
8	6
9	8
10	6
11	12
12	6
13	24
14	8
15	14
16	14
17	30
18	8
19	26
20	14
21	24
22	12
23	24
24	14
25	36
26	24
27	26
28	24
29	48
30	14
31	48
32	30
33	36
34	30
35	56
36	24
37	78
38	26
39	56
40	30
41	84
42	24
43	64
44	36
45	56
46	24
47	48
48	30
49	64
50	36
51	62
52	56
53	84
54	26
55	84
56	56
57	78
58	48
59	60
60	30
61	144
62	48
63	78
64	62
65	120
66	36
67	96

[0, 0, 2, 2, 6, 2, 8, 6, 8, 6, 12, 6, 24, 8, 14, 14, 30, 8, 26, 14, 24, 12, 24, 14, 36, 24, 26, 24, 48, 14, 48, 30, 36, 30, 56, 24, 78, 26, 56, 30, 84, 24, 64, 36, 56, 24, 48, 30, 64, 36, 62, 56, 84, 26, 84, 56, 78, 48, 60, 30, 144, 48, 78, 62, 120, 36, 96]

cp's OEIS Frontend

A193388 Sum of even divisors of phi(n).

Table of values

List of values

n	a(n)
1	0
2	0
3	2
4	2
5	6
6	2
7	8
8	6
9	8
10	6
11	12
12	6
13	24
14	8
15	14
16	14
17	30
18	8
19	26
20	14
21	24
22	12
23	24
24	14
25	36
26	24
27	26
28	24
29	48
30	14
31	48
32	30
33	36
34	30
35	56
36	24
37	78
38	26
39	56
40	30
41	84
42	24
43	64
44	36
45	56
46	24
47	48
48	30
49	64
50	36
51	62
52	56
53	84
54	26
55	84
56	56
57	78
58	48
59	60
60	30
61	144
62	48
63	78
64	62
65	120
66	36
67	96

n	a(n)
1	0
2	0
3	2
4	2
5	6
6	2
7	8
8	6
9	8
10	6
11	12
12	6
13	24
14	8
15	14
16	14
17	30
18	8
19	26
20	14
21	24
22	12
23	24
24	14
25	36
26	24
27	26
28	24
29	48
30	14
31	48
32	30
33	36
34	30
35	56
36	24
37	78
38	26
39	56
40	30
41	84
42	24
43	64
44	36
45	56
46	24
47	48
48	30
49	64
50	36
51	62
52	56
53	84
54	26
55	84
56	56
57	78
58	48
59	60
60	30
61	144
62	48
63	78
64	62
65	120
66	36
67	96

n	a(n)
1	0
2	0
3	2
4	2
5	6
6	2
7	8
8	6
9	8
10	6
11	12
12	6
13	24
14	8
15	14
16	14
17	30
18	8
19	26
20	14
21	24
22	12
23	24
24	14
25	36
26	24
27	26
28	24
29	48
30	14
31	48
32	30
33	36
34	30
35	56
36	24
37	78
38	26
39	56
40	30
41	84
42	24
43	64
44	36
45	56
46	24
47	48
48	30
49	64
50	36
51	62
52	56
53	84
54	26
55	84
56	56
57	78
58	48
59	60
60	30
61	144
62	48
63	78
64	62
65	120
66	36
67	96