A082055 - cp's OEIS frontend

A082055 Product of common prime-divisors (without multiplicity) of sigma(n) and phi(n).

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

[1, 1, 2, 1, 2, 2, 2, 1, 1, 2, 2, 2, 2, 6, 2, 1, 2, 3, 2, 2, 2, 2, 2, 2, 1, 6, 2, 2, 2, 2, 2, 1, 2, 2, 6, 1, 2, 6, 2, 2, 2, 6, 2, 2, 6, 2, 2, 2, 3, 1, 2, 2, 2, 6, 2, 6, 2, 2, 2, 2, 2, 6, 2, 1, 6, 2, 2, 2, 2, 6, 2, 3, 2, 6, 2, 2, 6, 6, 2, 2, 1, 2, 2, 2, 2, 6, 2, 10, 2, 6, 2, 2, 2, 2, 6, 2, 2, 3, 6, 1, 2, 2, 2, 6, 6]

cp's OEIS Frontend

A082055 Product of common prime-divisors (without multiplicity) of sigma(n) and phi(n).

Table of values

List of values

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

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

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