A350073 - cp's OEIS frontend

A350073 a(n) = A064989(sigma(n)), where A064989 is multiplicative with a(2^e) = 1 and a(p^e) = prevprime(p)^e for odd primes p.

n	a(n)
1	1
2	2
3	1
4	5
5	2
6	2
7	1
8	6
9	11
10	4
11	2
12	5
13	5
14	2
15	2
16	29
17	4
18	22
19	3
20	10
21	1
22	4
23	2
24	6
25	29
26	10
27	3
28	5
29	6
30	4
31	1
32	20
33	2
34	8
35	2
36	55
37	17
38	6
39	5
40	12
41	10
42	2
43	7
44	10
45	22
46	4
47	2
48	29
49	34
50	58
51	4
52	25
53	8
54	6
55	4
56	6
57	3
58	12
59	6
60	10
61	29
62	2
63	11
64	113
65	10
66	4
67	13
68	20
69	2
70	4
71	4
72	66
73	31
74	34
75	29
76	15
77	2
78	10
79	3
80	58
81	49
82	20
83	10
84	5
85	8
86	14
87	6
88	12
89	12
90	44
91	5
92	10

[1, 2, 1, 5, 2, 2, 1, 6, 11, 4, 2, 5, 5, 2, 2, 29, 4, 22, 3, 10, 1, 4, 2, 6, 29, 10, 3, 5, 6, 4, 1, 20, 2, 8, 2, 55, 17, 6, 5, 12, 10, 2, 7, 10, 22, 4, 2, 29, 34, 58, 4, 25, 8, 6, 4, 6, 3, 12, 6, 10, 29, 2, 11, 113, 10, 4, 13, 20, 2, 4, 4, 66, 31, 34, 29, 15, 2, 10, 3, 58, 49, 20, 10, 5, 8, 14, 6, 12, 12, 44, 5, 10]

cp's OEIS Frontend

A350073 a(n) = A064989(sigma(n)), where A064989 is multiplicative with a(2^e) = 1 and a(p^e) = prevprime(p)^e for odd primes p.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	5
5	2
6	2
7	1
8	6
9	11
10	4
11	2
12	5
13	5
14	2
15	2
16	29
17	4
18	22
19	3
20	10
21	1
22	4
23	2
24	6
25	29
26	10
27	3
28	5
29	6
30	4
31	1
32	20
33	2
34	8
35	2
36	55
37	17
38	6
39	5
40	12
41	10
42	2
43	7
44	10
45	22
46	4
47	2
48	29
49	34
50	58
51	4
52	25
53	8
54	6
55	4
56	6
57	3
58	12
59	6
60	10
61	29
62	2
63	11
64	113
65	10
66	4
67	13
68	20
69	2
70	4
71	4
72	66
73	31
74	34
75	29
76	15
77	2
78	10
79	3
80	58
81	49
82	20
83	10
84	5
85	8
86	14
87	6
88	12
89	12
90	44
91	5
92	10

n	a(n)
1	1
2	2
3	1
4	5
5	2
6	2
7	1
8	6
9	11
10	4
11	2
12	5
13	5
14	2
15	2
16	29
17	4
18	22
19	3
20	10
21	1
22	4
23	2
24	6
25	29
26	10
27	3
28	5
29	6
30	4
31	1
32	20
33	2
34	8
35	2
36	55
37	17
38	6
39	5
40	12
41	10
42	2
43	7
44	10
45	22
46	4
47	2
48	29
49	34
50	58
51	4
52	25
53	8
54	6
55	4
56	6
57	3
58	12
59	6
60	10
61	29
62	2
63	11
64	113
65	10
66	4
67	13
68	20
69	2
70	4
71	4
72	66
73	31
74	34
75	29
76	15
77	2
78	10
79	3
80	58
81	49
82	20
83	10
84	5
85	8
86	14
87	6
88	12
89	12
90	44
91	5
92	10

n	a(n)
1	1
2	2
3	1
4	5
5	2
6	2
7	1
8	6
9	11
10	4
11	2
12	5
13	5
14	2
15	2
16	29
17	4
18	22
19	3
20	10
21	1
22	4
23	2
24	6
25	29
26	10
27	3
28	5
29	6
30	4
31	1
32	20
33	2
34	8
35	2
36	55
37	17
38	6
39	5
40	12
41	10
42	2
43	7
44	10
45	22
46	4
47	2
48	29
49	34
50	58
51	4
52	25
53	8
54	6
55	4
56	6
57	3
58	12
59	6
60	10
61	29
62	2
63	11
64	113
65	10
66	4
67	13
68	20
69	2
70	4
71	4
72	66
73	31
74	34
75	29
76	15
77	2
78	10
79	3
80	58
81	49
82	20
83	10
84	5
85	8
86	14
87	6
88	12
89	12
90	44
91	5
92	10