A336457 - cp's OEIS frontend

A336457 a(n) = A065330(sigma(n)), where A065330 is fully multiplicative with a(2) = a(3) = 1, and a(p) = p for primes p > 3.

n	a(n)
1	1
2	1
3	1
4	7
5	1
6	1
7	1
8	5
9	13
10	1
11	1
12	7
13	7
14	1
15	1
16	31
17	1
18	13
19	5
20	7
21	1
22	1
23	1
24	5
25	31
26	7
27	5
28	7
29	5
30	1
31	1
32	7
33	1
34	1
35	1
36	91
37	19
38	5
39	7
40	5
41	7
42	1
43	11
44	7
45	13
46	1
47	1
48	31
49	19
50	31
51	1
52	49
53	1
54	5
55	1
56	5
57	5
58	5
59	5
60	7
61	31
62	1
63	13
64	127
65	7
66	1
67	17
68	7
69	1
70	1
71	1
72	65
73	37
74	19
75	31
76	35
77	1
78	7
79	5
80	31
81	121
82	7
83	7
84	7
85	1
86	11
87	5
88	5
89	5
90	13
91	7
92	7
93	1
94	1
95	5
96	7
97	49

[1, 1, 1, 7, 1, 1, 1, 5, 13, 1, 1, 7, 7, 1, 1, 31, 1, 13, 5, 7, 1, 1, 1, 5, 31, 7, 5, 7, 5, 1, 1, 7, 1, 1, 1, 91, 19, 5, 7, 5, 7, 1, 11, 7, 13, 1, 1, 31, 19, 31, 1, 49, 1, 5, 1, 5, 5, 5, 5, 7, 31, 1, 13, 127, 7, 1, 17, 7, 1, 1, 1, 65, 37, 19, 31, 35, 1, 7, 5, 31, 121, 7, 7, 7, 1, 11, 5, 5, 5, 13, 7, 7, 1, 1, 5, 7, 49]

cp's OEIS Frontend

A336457 a(n) = A065330(sigma(n)), where A065330 is fully multiplicative with a(2) = a(3) = 1, and a(p) = p for primes p > 3.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	7
5	1
6	1
7	1
8	5
9	13
10	1
11	1
12	7
13	7
14	1
15	1
16	31
17	1
18	13
19	5
20	7
21	1
22	1
23	1
24	5
25	31
26	7
27	5
28	7
29	5
30	1
31	1
32	7
33	1
34	1
35	1
36	91
37	19
38	5
39	7
40	5
41	7
42	1
43	11
44	7
45	13
46	1
47	1
48	31
49	19
50	31
51	1
52	49
53	1
54	5
55	1
56	5
57	5
58	5
59	5
60	7
61	31
62	1
63	13
64	127
65	7
66	1
67	17
68	7
69	1
70	1
71	1
72	65
73	37
74	19
75	31
76	35
77	1
78	7
79	5
80	31
81	121
82	7
83	7
84	7
85	1
86	11
87	5
88	5
89	5
90	13
91	7
92	7
93	1
94	1
95	5
96	7
97	49

n	a(n)
1	1
2	1
3	1
4	7
5	1
6	1
7	1
8	5
9	13
10	1
11	1
12	7
13	7
14	1
15	1
16	31
17	1
18	13
19	5
20	7
21	1
22	1
23	1
24	5
25	31
26	7
27	5
28	7
29	5
30	1
31	1
32	7
33	1
34	1
35	1
36	91
37	19
38	5
39	7
40	5
41	7
42	1
43	11
44	7
45	13
46	1
47	1
48	31
49	19
50	31
51	1
52	49
53	1
54	5
55	1
56	5
57	5
58	5
59	5
60	7
61	31
62	1
63	13
64	127
65	7
66	1
67	17
68	7
69	1
70	1
71	1
72	65
73	37
74	19
75	31
76	35
77	1
78	7
79	5
80	31
81	121
82	7
83	7
84	7
85	1
86	11
87	5
88	5
89	5
90	13
91	7
92	7
93	1
94	1
95	5
96	7
97	49

n	a(n)
1	1
2	1
3	1
4	7
5	1
6	1
7	1
8	5
9	13
10	1
11	1
12	7
13	7
14	1
15	1
16	31
17	1
18	13
19	5
20	7
21	1
22	1
23	1
24	5
25	31
26	7
27	5
28	7
29	5
30	1
31	1
32	7
33	1
34	1
35	1
36	91
37	19
38	5
39	7
40	5
41	7
42	1
43	11
44	7
45	13
46	1
47	1
48	31
49	19
50	31
51	1
52	49
53	1
54	5
55	1
56	5
57	5
58	5
59	5
60	7
61	31
62	1
63	13
64	127
65	7
66	1
67	17
68	7
69	1
70	1
71	1
72	65
73	37
74	19
75	31
76	35
77	1
78	7
79	5
80	31
81	121
82	7
83	7
84	7
85	1
86	11
87	5
88	5
89	5
90	13
91	7
92	7
93	1
94	1
95	5
96	7
97	49