A348049 - cp's OEIS frontend

A348049 a(n) = A003959(n) / gcd(sigma(n), A003959(n)), where A003959 is multiplicative with a(p^e) = (p+1)^e and sigma is the sum of divisors function.

n	a(n)
1	1
2	1
3	1
4	9
5	1
6	1
7	1
8	9
9	16
10	1
11	1
12	9
13	1
14	1
15	1
16	81
17	1
18	16
19	1
20	9
21	1
22	1
23	1
24	9
25	36
26	1
27	8
28	9
29	1
30	1
31	1
32	27
33	1
34	1
35	1
36	144
37	1
38	1
39	1
40	9
41	1
42	1
43	1
44	9
45	16
46	1
47	1
48	81
49	64
50	36
51	1
52	9
53	1
54	8
55	1
56	9
57	1
58	1
59	1
60	9
61	1
62	1
63	16
64	729
65	1
66	1
67	1
68	9
69	1
70	1
71	1
72	144
73	1
74	1
75	36
76	9
77	1
78	1
79	1
80	81
81	256
82	1
83	1
84	9
85	1
86	1
87	1
88	9
89	1
90	16
91	1
92	9
93	1
94	1
95	1
96	27
97	1
98	64

[1, 1, 1, 9, 1, 1, 1, 9, 16, 1, 1, 9, 1, 1, 1, 81, 1, 16, 1, 9, 1, 1, 1, 9, 36, 1, 8, 9, 1, 1, 1, 27, 1, 1, 1, 144, 1, 1, 1, 9, 1, 1, 1, 9, 16, 1, 1, 81, 64, 36, 1, 9, 1, 8, 1, 9, 1, 1, 1, 9, 1, 1, 16, 729, 1, 1, 1, 9, 1, 1, 1, 144, 1, 1, 36, 9, 1, 1, 1, 81, 256, 1, 1, 9, 1, 1, 1, 9, 1, 16, 1, 9, 1, 1, 1, 27, 1, 64]

cp's OEIS Frontend

A348049 a(n) = A003959(n) / gcd(sigma(n), A003959(n)), where A003959 is multiplicative with a(p^e) = (p+1)^e and sigma is the sum of divisors function.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	9
5	1
6	1
7	1
8	9
9	16
10	1
11	1
12	9
13	1
14	1
15	1
16	81
17	1
18	16
19	1
20	9
21	1
22	1
23	1
24	9
25	36
26	1
27	8
28	9
29	1
30	1
31	1
32	27
33	1
34	1
35	1
36	144
37	1
38	1
39	1
40	9
41	1
42	1
43	1
44	9
45	16
46	1
47	1
48	81
49	64
50	36
51	1
52	9
53	1
54	8
55	1
56	9
57	1
58	1
59	1
60	9
61	1
62	1
63	16
64	729
65	1
66	1
67	1
68	9
69	1
70	1
71	1
72	144
73	1
74	1
75	36
76	9
77	1
78	1
79	1
80	81
81	256
82	1
83	1
84	9
85	1
86	1
87	1
88	9
89	1
90	16
91	1
92	9
93	1
94	1
95	1
96	27
97	1
98	64

n	a(n)
1	1
2	1
3	1
4	9
5	1
6	1
7	1
8	9
9	16
10	1
11	1
12	9
13	1
14	1
15	1
16	81
17	1
18	16
19	1
20	9
21	1
22	1
23	1
24	9
25	36
26	1
27	8
28	9
29	1
30	1
31	1
32	27
33	1
34	1
35	1
36	144
37	1
38	1
39	1
40	9
41	1
42	1
43	1
44	9
45	16
46	1
47	1
48	81
49	64
50	36
51	1
52	9
53	1
54	8
55	1
56	9
57	1
58	1
59	1
60	9
61	1
62	1
63	16
64	729
65	1
66	1
67	1
68	9
69	1
70	1
71	1
72	144
73	1
74	1
75	36
76	9
77	1
78	1
79	1
80	81
81	256
82	1
83	1
84	9
85	1
86	1
87	1
88	9
89	1
90	16
91	1
92	9
93	1
94	1
95	1
96	27
97	1
98	64

n	a(n)
1	1
2	1
3	1
4	9
5	1
6	1
7	1
8	9
9	16
10	1
11	1
12	9
13	1
14	1
15	1
16	81
17	1
18	16
19	1
20	9
21	1
22	1
23	1
24	9
25	36
26	1
27	8
28	9
29	1
30	1
31	1
32	27
33	1
34	1
35	1
36	144
37	1
38	1
39	1
40	9
41	1
42	1
43	1
44	9
45	16
46	1
47	1
48	81
49	64
50	36
51	1
52	9
53	1
54	8
55	1
56	9
57	1
58	1
59	1
60	9
61	1
62	1
63	16
64	729
65	1
66	1
67	1
68	9
69	1
70	1
71	1
72	144
73	1
74	1
75	36
76	9
77	1
78	1
79	1
80	81
81	256
82	1
83	1
84	9
85	1
86	1
87	1
88	9
89	1
90	16
91	1
92	9
93	1
94	1
95	1
96	27
97	1
98	64