A330739 - cp's OEIS frontend

A330739 Number of values of k, 1 <= k <= n, with A047994(k) = A047994(n), where A047994 is unitary totient function uphi(n).

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

[1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 1, 3, 2, 1, 1, 3, 1, 2, 3, 2, 1, 1, 1, 4, 1, 2, 1, 4, 1, 1, 1, 2, 2, 3, 1, 3, 4, 2, 1, 5, 1, 2, 1, 2, 1, 3, 1, 5, 2, 2, 1, 2, 2, 2, 3, 3, 1, 6, 1, 4, 2, 1, 3, 2, 1, 4, 1, 7, 1, 1, 1, 4, 5, 1, 2, 8, 1, 3, 1, 3, 1, 5, 1, 3, 2, 2, 1, 3, 2, 2, 4, 2, 3, 1, 1, 6, 2, 4, 1, 4, 1, 1, 7]

cp's OEIS Frontend

A330739 Number of values of k, 1 <= k <= n, with A047994(k) = A047994(n), where A047994 is unitary totient function uphi(n).

Table of values

List of values

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

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

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