A233412 - cp's OEIS frontend

A233412 c-analog of Euler phi-function: a(n) is number of nonnegative integers not exceeding n and c-prime to n.

n	a(n)
0	1
1	1
2	2
3	2
4	4
5	2
6	2
7	3
8	8
9	3
10	7
11	3
12	4
13	3
14	3
15	5
16	16
17	5
18	8
19	5
20	8
21	4
22	4
23	4
24	7
25	5
26	4
27	4
28	5
29	4
30	4
31	8
32	32
33	8
34	15
35	8
36	28
37	4
38	4
39	7
40	17
41	4
42	21
43	6
44	4
45	6
46	6
47	6
48	12
49	10
50	4
51	9
52	4
53	6
54	6
55	6
56	10
57	9
58	6
59	6
60	9
61	6
62	6
63	13
64	64
65	13
66	27
67	13
68	41
69	6
70	6
71	12
72	41
73	11
74	21
75	5
76	11
77	5
78	5
79	11

[1, 1, 2, 2, 4, 2, 2, 3, 8, 3, 7, 3, 4, 3, 3, 5, 16, 5, 8, 5, 8, 4, 4, 4, 7, 5, 4, 4, 5, 4, 4, 8, 32, 8, 15, 8, 28, 4, 4, 7, 17, 4, 21, 6, 4, 6, 6, 6, 12, 10, 4, 9, 4, 6, 6, 6, 10, 9, 6, 6, 9, 6, 6, 13, 64, 13, 27, 13, 41, 6, 6, 12, 41, 11, 21, 5, 11, 5, 5, 11]

cp's OEIS Frontend

A233412 c-analog of Euler phi-function: a(n) is number of nonnegative integers not exceeding n and c-prime to n.

Table of values

List of values

n	a(n)
0	1
1	1
2	2
3	2
4	4
5	2
6	2
7	3
8	8
9	3
10	7
11	3
12	4
13	3
14	3
15	5
16	16
17	5
18	8
19	5
20	8
21	4
22	4
23	4
24	7
25	5
26	4
27	4
28	5
29	4
30	4
31	8
32	32
33	8
34	15
35	8
36	28
37	4
38	4
39	7
40	17
41	4
42	21
43	6
44	4
45	6
46	6
47	6
48	12
49	10
50	4
51	9
52	4
53	6
54	6
55	6
56	10
57	9
58	6
59	6
60	9
61	6
62	6
63	13
64	64
65	13
66	27
67	13
68	41
69	6
70	6
71	12
72	41
73	11
74	21
75	5
76	11
77	5
78	5
79	11

n	a(n)
0	1
1	1
2	2
3	2
4	4
5	2
6	2
7	3
8	8
9	3
10	7
11	3
12	4
13	3
14	3
15	5
16	16
17	5
18	8
19	5
20	8
21	4
22	4
23	4
24	7
25	5
26	4
27	4
28	5
29	4
30	4
31	8
32	32
33	8
34	15
35	8
36	28
37	4
38	4
39	7
40	17
41	4
42	21
43	6
44	4
45	6
46	6
47	6
48	12
49	10
50	4
51	9
52	4
53	6
54	6
55	6
56	10
57	9
58	6
59	6
60	9
61	6
62	6
63	13
64	64
65	13
66	27
67	13
68	41
69	6
70	6
71	12
72	41
73	11
74	21
75	5
76	11
77	5
78	5
79	11

n	a(n)
0	1
1	1
2	2
3	2
4	4
5	2
6	2
7	3
8	8
9	3
10	7
11	3
12	4
13	3
14	3
15	5
16	16
17	5
18	8
19	5
20	8
21	4
22	4
23	4
24	7
25	5
26	4
27	4
28	5
29	4
30	4
31	8
32	32
33	8
34	15
35	8
36	28
37	4
38	4
39	7
40	17
41	4
42	21
43	6
44	4
45	6
46	6
47	6
48	12
49	10
50	4
51	9
52	4
53	6
54	6
55	6
56	10
57	9
58	6
59	6
60	9
61	6
62	6
63	13
64	64
65	13
66	27
67	13
68	41
69	6
70	6
71	12
72	41
73	11
74	21
75	5
76	11
77	5
78	5
79	11