A373377 - cp's OEIS frontend

A373377 a(n) = gcd(A059975(n), A083345(n)), where A059975 is fully additive with a(p) = p-1, and A083345 is the numerator of the fully additive function with a(p) = 1/p.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	3
9	2
10	1
11	1
12	4
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	6
21	2
22	1
23	1
24	1
25	2
26	1
27	1
28	8
29	1
30	1
31	1
32	5
33	2
34	1
35	2
36	1
37	1
38	1
39	2
40	1
41	1
42	1
43	1
44	12
45	1
46	1
47	1
48	1
49	2
50	9
51	2
52	14
53	1
54	1
55	2
56	1
57	2
58	1
59	1
60	1
61	1
62	1
63	1
64	3
65	2
66	1
67	1
68	18
69	2
70	1
71	1
72	1
73	1
74	1
75	1
76	20
77	2
78	1
79	1
80	1
81	4
82	1
83	1
84	1
85	2
86	1
87	2
88	1
89	1
90	1
91	2
92	24
93	2
94	1
95	2
96	1
97	1
98	1
99	1
100	1
101	1
102	1
103	1
104	1
105	1

[0, 1, 1, 1, 1, 1, 1, 3, 2, 1, 1, 4, 1, 1, 2, 2, 1, 1, 1, 6, 2, 1, 1, 1, 2, 1, 1, 8, 1, 1, 1, 5, 2, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 12, 1, 1, 1, 1, 2, 9, 2, 14, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 3, 2, 1, 1, 18, 2, 1, 1, 1, 1, 1, 1, 20, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 24, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]

cp's OEIS Frontend

A373377 a(n) = gcd(A059975(n), A083345(n)), where A059975 is fully additive with a(p) = p-1, and A083345 is the numerator of the fully additive function with a(p) = 1/p.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	3
9	2
10	1
11	1
12	4
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	6
21	2
22	1
23	1
24	1
25	2
26	1
27	1
28	8
29	1
30	1
31	1
32	5
33	2
34	1
35	2
36	1
37	1
38	1
39	2
40	1
41	1
42	1
43	1
44	12
45	1
46	1
47	1
48	1
49	2
50	9
51	2
52	14
53	1
54	1
55	2
56	1
57	2
58	1
59	1
60	1
61	1
62	1
63	1
64	3
65	2
66	1
67	1
68	18
69	2
70	1
71	1
72	1
73	1
74	1
75	1
76	20
77	2
78	1
79	1
80	1
81	4
82	1
83	1
84	1
85	2
86	1
87	2
88	1
89	1
90	1
91	2
92	24
93	2
94	1
95	2
96	1
97	1
98	1
99	1
100	1
101	1
102	1
103	1
104	1
105	1

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	3
9	2
10	1
11	1
12	4
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	6
21	2
22	1
23	1
24	1
25	2
26	1
27	1
28	8
29	1
30	1
31	1
32	5
33	2
34	1
35	2
36	1
37	1
38	1
39	2
40	1
41	1
42	1
43	1
44	12
45	1
46	1
47	1
48	1
49	2
50	9
51	2
52	14
53	1
54	1
55	2
56	1
57	2
58	1
59	1
60	1
61	1
62	1
63	1
64	3
65	2
66	1
67	1
68	18
69	2
70	1
71	1
72	1
73	1
74	1
75	1
76	20
77	2
78	1
79	1
80	1
81	4
82	1
83	1
84	1
85	2
86	1
87	2
88	1
89	1
90	1
91	2
92	24
93	2
94	1
95	2
96	1
97	1
98	1
99	1
100	1
101	1
102	1
103	1
104	1
105	1

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	3
9	2
10	1
11	1
12	4
13	1
14	1
15	2
16	2
17	1
18	1
19	1
20	6
21	2
22	1
23	1
24	1
25	2
26	1
27	1
28	8
29	1
30	1
31	1
32	5
33	2
34	1
35	2
36	1
37	1
38	1
39	2
40	1
41	1
42	1
43	1
44	12
45	1
46	1
47	1
48	1
49	2
50	9
51	2
52	14
53	1
54	1
55	2
56	1
57	2
58	1
59	1
60	1
61	1
62	1
63	1
64	3
65	2
66	1
67	1
68	18
69	2
70	1
71	1
72	1
73	1
74	1
75	1
76	20
77	2
78	1
79	1
80	1
81	4
82	1
83	1
84	1
85	2
86	1
87	2
88	1
89	1
90	1
91	2
92	24
93	2
94	1
95	2
96	1
97	1
98	1
99	1
100	1
101	1
102	1
103	1
104	1
105	1