A295310 - cp's OEIS frontend

A295310 a(n) = gcd(n, A062401(n)), where A062401(n) = phi(sigma(n)).

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

[1, 2, 1, 2, 1, 2, 1, 8, 3, 2, 1, 12, 1, 2, 1, 2, 1, 6, 1, 4, 1, 2, 1, 8, 5, 2, 1, 4, 1, 6, 1, 4, 1, 2, 1, 36, 1, 2, 3, 8, 1, 2, 1, 4, 3, 2, 1, 12, 1, 10, 3, 2, 1, 2, 1, 8, 1, 2, 1, 12, 1, 2, 3, 2, 1, 6, 1, 4, 1, 2, 1, 24, 1, 2, 15, 4, 1, 6, 1, 20, 1, 2, 1, 12, 1, 2, 1, 8, 1, 18, 1, 4, 1, 2, 1, 24, 1, 2, 3, 20, 1, 6, 1, 8, 1]

cp's OEIS Frontend

A295310 a(n) = gcd(n, A062401(n)), where A062401(n) = phi(sigma(n)).

Table of values

List of values

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

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

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