A125704 - cp's OEIS frontend

A125704 Table read by antidiagonals: row n contains the positive integers (in order) which are coprime to the n-th prime.

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

[1, 1, 3, 1, 2, 5, 1, 2, 4, 7, 1, 2, 3, 5, 9, 1, 2, 3, 4, 7, 11, 1, 2, 3, 4, 6, 8, 13, 1, 2, 3, 4, 5, 7, 10, 15, 1, 2, 3, 4, 5, 6, 8, 11, 17, 1, 2, 3, 4, 5, 6, 8, 9, 13, 19, 1, 2, 3, 4, 5, 6, 7, 9, 11, 14, 21, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 23, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 17, 25, 1, 2, 3, 4, 5]

cp's OEIS Frontend

A125704 Table read by antidiagonals: row n contains the positive integers (in order) which are coprime to the n-th prime.

Table of values

List of values

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

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

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