A349132 - cp's OEIS frontend

A349132 a(n) = Sum_{d|n} psi(d) * A003958(n/d), where A003958 is fully multiplicative with a(p) = (p-1), and psi is Dedekind psi function, A001615.

n	a(n)
1	1
2	4
3	6
4	10
5	10
6	24
7	14
8	22
9	24
10	40
11	22
12	60
13	26
14	56
15	60
16	46
17	34
18	96
19	38
20	100
21	84
22	88
23	46
24	132
25	70
26	104
27	84
28	140
29	58
30	240
31	62
32	94
33	132
34	136
35	140
36	240
37	74
38	152
39	156
40	220
41	82
42	336
43	86
44	220
45	240
46	184
47	94
48	276
49	140
50	280
51	204
52	260
53	106
54	336
55	220
56	308
57	228
58	232
59	118
60	600
61	122
62	248
63	336
64	190
65	260
66	528
67	134
68	340
69	276
70	560

[1, 4, 6, 10, 10, 24, 14, 22, 24, 40, 22, 60, 26, 56, 60, 46, 34, 96, 38, 100, 84, 88, 46, 132, 70, 104, 84, 140, 58, 240, 62, 94, 132, 136, 140, 240, 74, 152, 156, 220, 82, 336, 86, 220, 240, 184, 94, 276, 140, 280, 204, 260, 106, 336, 220, 308, 228, 232, 118, 600, 122, 248, 336, 190, 260, 528, 134, 340, 276, 560]

cp's OEIS Frontend

A349132 a(n) = Sum_{d|n} psi(d) * A003958(n/d), where A003958 is fully multiplicative with a(p) = (p-1), and psi is Dedekind psi function, A001615.

Table of values

List of values

n	a(n)
1	1
2	4
3	6
4	10
5	10
6	24
7	14
8	22
9	24
10	40
11	22
12	60
13	26
14	56
15	60
16	46
17	34
18	96
19	38
20	100
21	84
22	88
23	46
24	132
25	70
26	104
27	84
28	140
29	58
30	240
31	62
32	94
33	132
34	136
35	140
36	240
37	74
38	152
39	156
40	220
41	82
42	336
43	86
44	220
45	240
46	184
47	94
48	276
49	140
50	280
51	204
52	260
53	106
54	336
55	220
56	308
57	228
58	232
59	118
60	600
61	122
62	248
63	336
64	190
65	260
66	528
67	134
68	340
69	276
70	560

n	a(n)
1	1
2	4
3	6
4	10
5	10
6	24
7	14
8	22
9	24
10	40
11	22
12	60
13	26
14	56
15	60
16	46
17	34
18	96
19	38
20	100
21	84
22	88
23	46
24	132
25	70
26	104
27	84
28	140
29	58
30	240
31	62
32	94
33	132
34	136
35	140
36	240
37	74
38	152
39	156
40	220
41	82
42	336
43	86
44	220
45	240
46	184
47	94
48	276
49	140
50	280
51	204
52	260
53	106
54	336
55	220
56	308
57	228
58	232
59	118
60	600
61	122
62	248
63	336
64	190
65	260
66	528
67	134
68	340
69	276
70	560

n	a(n)
1	1
2	4
3	6
4	10
5	10
6	24
7	14
8	22
9	24
10	40
11	22
12	60
13	26
14	56
15	60
16	46
17	34
18	96
19	38
20	100
21	84
22	88
23	46
24	132
25	70
26	104
27	84
28	140
29	58
30	240
31	62
32	94
33	132
34	136
35	140
36	240
37	74
38	152
39	156
40	220
41	82
42	336
43	86
44	220
45	240
46	184
47	94
48	276
49	140
50	280
51	204
52	260
53	106
54	336
55	220
56	308
57	228
58	232
59	118
60	600
61	122
62	248
63	336
64	190
65	260
66	528
67	134
68	340
69	276
70	560