A348930 - cp's OEIS frontend

A348930 a(n) = A038502(sigma(n)), where A038502 is fully multiplicative with a(3) = 1, and a(p) = p for any other prime p.

n	a(n)
1	1
2	1
3	4
4	7
5	2
6	4
7	8
8	5
9	13
10	2
11	4
12	28
13	14
14	8
15	8
16	31
17	2
18	13
19	20
20	14
21	32
22	4
23	8
24	20
25	31
26	14
27	40
28	56
29	10
30	8
31	32
32	7
33	16
34	2
35	16
36	91
37	38
38	20
39	56
40	10
41	14
42	32
43	44
44	28
45	26
46	8
47	16
48	124
49	19
50	31
51	8
52	98
53	2
54	40
55	8
56	40
57	80
58	10
59	20
60	56
61	62
62	32
63	104
64	127
65	28
66	16
67	68
68	14
69	32
70	16
71	8
72	65
73	74
74	38
75	124
76	140
77	32
78	56
79	80
80	62
81	121
82	14
83	28

[1, 1, 4, 7, 2, 4, 8, 5, 13, 2, 4, 28, 14, 8, 8, 31, 2, 13, 20, 14, 32, 4, 8, 20, 31, 14, 40, 56, 10, 8, 32, 7, 16, 2, 16, 91, 38, 20, 56, 10, 14, 32, 44, 28, 26, 8, 16, 124, 19, 31, 8, 98, 2, 40, 8, 40, 80, 10, 20, 56, 62, 32, 104, 127, 28, 16, 68, 14, 32, 16, 8, 65, 74, 38, 124, 140, 32, 56, 80, 62, 121, 14, 28]

cp's OEIS Frontend

A348930 a(n) = A038502(sigma(n)), where A038502 is fully multiplicative with a(3) = 1, and a(p) = p for any other prime p.

Table of values

List of values

n	a(n)
1	1
2	1
3	4
4	7
5	2
6	4
7	8
8	5
9	13
10	2
11	4
12	28
13	14
14	8
15	8
16	31
17	2
18	13
19	20
20	14
21	32
22	4
23	8
24	20
25	31
26	14
27	40
28	56
29	10
30	8
31	32
32	7
33	16
34	2
35	16
36	91
37	38
38	20
39	56
40	10
41	14
42	32
43	44
44	28
45	26
46	8
47	16
48	124
49	19
50	31
51	8
52	98
53	2
54	40
55	8
56	40
57	80
58	10
59	20
60	56
61	62
62	32
63	104
64	127
65	28
66	16
67	68
68	14
69	32
70	16
71	8
72	65
73	74
74	38
75	124
76	140
77	32
78	56
79	80
80	62
81	121
82	14
83	28

n	a(n)
1	1
2	1
3	4
4	7
5	2
6	4
7	8
8	5
9	13
10	2
11	4
12	28
13	14
14	8
15	8
16	31
17	2
18	13
19	20
20	14
21	32
22	4
23	8
24	20
25	31
26	14
27	40
28	56
29	10
30	8
31	32
32	7
33	16
34	2
35	16
36	91
37	38
38	20
39	56
40	10
41	14
42	32
43	44
44	28
45	26
46	8
47	16
48	124
49	19
50	31
51	8
52	98
53	2
54	40
55	8
56	40
57	80
58	10
59	20
60	56
61	62
62	32
63	104
64	127
65	28
66	16
67	68
68	14
69	32
70	16
71	8
72	65
73	74
74	38
75	124
76	140
77	32
78	56
79	80
80	62
81	121
82	14
83	28

n	a(n)
1	1
2	1
3	4
4	7
5	2
6	4
7	8
8	5
9	13
10	2
11	4
12	28
13	14
14	8
15	8
16	31
17	2
18	13
19	20
20	14
21	32
22	4
23	8
24	20
25	31
26	14
27	40
28	56
29	10
30	8
31	32
32	7
33	16
34	2
35	16
36	91
37	38
38	20
39	56
40	10
41	14
42	32
43	44
44	28
45	26
46	8
47	16
48	124
49	19
50	31
51	8
52	98
53	2
54	40
55	8
56	40
57	80
58	10
59	20
60	56
61	62
62	32
63	104
64	127
65	28
66	16
67	68
68	14
69	32
70	16
71	8
72	65
73	74
74	38
75	124
76	140
77	32
78	56
79	80
80	62
81	121
82	14
83	28