A068212 - cp's OEIS frontend

A068212 a(n) = phi(n) divided by its largest prime factor.

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

[1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 4, 2, 4, 4, 8, 2, 6, 4, 4, 2, 2, 4, 4, 4, 6, 4, 4, 4, 6, 8, 4, 8, 8, 4, 12, 6, 8, 8, 8, 4, 6, 4, 8, 2, 2, 8, 6, 4, 16, 8, 4, 6, 8, 8, 12, 4, 2, 8, 12, 6, 12, 16, 16, 4, 6, 16, 4, 8, 10, 8, 24, 12, 8, 12, 12, 8, 6, 16, 18, 8, 2, 8, 32, 6, 8, 8, 8, 8, 24, 4, 12, 2, 24]

cp's OEIS Frontend

A068212 a(n) = phi(n) divided by its largest prime factor.

Table of values

List of values

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

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

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