A384244 - cp's OEIS frontend

A384244 Triangle in which the n-th row gives the numbers k from 1 to n such that the greatest common unitary divisor of k and n is 1.

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

[1, 1, 1, 2, 1, 2, 3, 1, 2, 3, 4, 1, 4, 5, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 5, 6, 7, 8, 1, 3, 4, 7, 8, 9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 5, 7, 8, 9, 10, 11, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 1, 3, 4, 5, 8, 9, 11, 12, 13, 1, 2, 4, 7, 8, 9, 11, 13, 14]

cp's OEIS Frontend

A384244 Triangle in which the n-th row gives the numbers k from 1 to n such that the greatest common unitary divisor of k and n is 1.

Table of values

List of values

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

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

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