A323403 - cp's OEIS frontend

A323403 Sum of sigma and its Dirichlet inverse: a(n) = A000203(n) + A046692(n).

n	a(n)
1	2
2	0
3	0
4	9
5	0
6	24
7	0
8	15
9	16
10	36
11	0
12	20
13	0
14	48
15	48
16	31
17	0
18	30
19	0
20	30
21	64
22	72
23	0
24	60
25	36
26	84
27	40
28	40
29	0
30	0
31	0
32	63
33	96
34	108
35	96
36	97
37	0
38	120
39	112
40	90
41	0
42	0
43	0
44	60
45	60
46	144
47	0
48	124
49	64
50	78
51	144
52	70
53	0
54	120
55	144
56	120
57	160
58	180
59	0
60	216
61	0
62	192
63	80
64	127
65	168
66	0
67	0
68	90
69	192
70	0
71	0
72	195
73	0
74	228
75	104
76	100
77	192
78	0
79	0
80	186
81	121
82	252
83	0
84	288
85	216
86	264
87	240
88	180
89	0
90	288

[2, 0, 0, 9, 0, 24, 0, 15, 16, 36, 0, 20, 0, 48, 48, 31, 0, 30, 0, 30, 64, 72, 0, 60, 36, 84, 40, 40, 0, 0, 0, 63, 96, 108, 96, 97, 0, 120, 112, 90, 0, 0, 0, 60, 60, 144, 0, 124, 64, 78, 144, 70, 0, 120, 144, 120, 160, 180, 0, 216, 0, 192, 80, 127, 168, 0, 0, 90, 192, 0, 0, 195, 0, 228, 104, 100, 192, 0, 0, 186, 121, 252, 0, 288, 216, 264, 240, 180, 0, 288]

cp's OEIS Frontend

A323403 Sum of sigma and its Dirichlet inverse: a(n) = A000203(n) + A046692(n).

Table of values

List of values

n	a(n)
1	2
2	0
3	0
4	9
5	0
6	24
7	0
8	15
9	16
10	36
11	0
12	20
13	0
14	48
15	48
16	31
17	0
18	30
19	0
20	30
21	64
22	72
23	0
24	60
25	36
26	84
27	40
28	40
29	0
30	0
31	0
32	63
33	96
34	108
35	96
36	97
37	0
38	120
39	112
40	90
41	0
42	0
43	0
44	60
45	60
46	144
47	0
48	124
49	64
50	78
51	144
52	70
53	0
54	120
55	144
56	120
57	160
58	180
59	0
60	216
61	0
62	192
63	80
64	127
65	168
66	0
67	0
68	90
69	192
70	0
71	0
72	195
73	0
74	228
75	104
76	100
77	192
78	0
79	0
80	186
81	121
82	252
83	0
84	288
85	216
86	264
87	240
88	180
89	0
90	288

n	a(n)
1	2
2	0
3	0
4	9
5	0
6	24
7	0
8	15
9	16
10	36
11	0
12	20
13	0
14	48
15	48
16	31
17	0
18	30
19	0
20	30
21	64
22	72
23	0
24	60
25	36
26	84
27	40
28	40
29	0
30	0
31	0
32	63
33	96
34	108
35	96
36	97
37	0
38	120
39	112
40	90
41	0
42	0
43	0
44	60
45	60
46	144
47	0
48	124
49	64
50	78
51	144
52	70
53	0
54	120
55	144
56	120
57	160
58	180
59	0
60	216
61	0
62	192
63	80
64	127
65	168
66	0
67	0
68	90
69	192
70	0
71	0
72	195
73	0
74	228
75	104
76	100
77	192
78	0
79	0
80	186
81	121
82	252
83	0
84	288
85	216
86	264
87	240
88	180
89	0
90	288

n	a(n)
1	2
2	0
3	0
4	9
5	0
6	24
7	0
8	15
9	16
10	36
11	0
12	20
13	0
14	48
15	48
16	31
17	0
18	30
19	0
20	30
21	64
22	72
23	0
24	60
25	36
26	84
27	40
28	40
29	0
30	0
31	0
32	63
33	96
34	108
35	96
36	97
37	0
38	120
39	112
40	90
41	0
42	0
43	0
44	60
45	60
46	144
47	0
48	124
49	64
50	78
51	144
52	70
53	0
54	120
55	144
56	120
57	160
58	180
59	0
60	216
61	0
62	192
63	80
64	127
65	168
66	0
67	0
68	90
69	192
70	0
71	0
72	195
73	0
74	228
75	104
76	100
77	192
78	0
79	0
80	186
81	121
82	252
83	0
84	288
85	216
86	264
87	240
88	180
89	0
90	288