A322937 - cp's OEIS frontend

A322937 Triangular array in which the n-th row lists the primes strongly prime to n (in ascending order). For the empty rows n = 1, 2, 3, 4 and 6 we set by convention 0.

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

[0, 0, 0, 0, 3, 0, 5, 3, 5, 5, 7, 7, 3, 7, 5, 7, 5, 7, 11, 3, 5, 11, 11, 13, 7, 11, 13, 3, 5, 7, 11, 13, 5, 7, 11, 13, 5, 7, 11, 13, 17, 3, 7, 11, 13, 17, 11, 13, 17, 19, 5, 13, 17, 19, 3, 5, 7, 13, 17, 19, 5, 7, 11, 13, 17, 19, 7, 11, 13, 17, 19, 23]

cp's OEIS Frontend

A322937 Triangular array in which the n-th row lists the primes strongly prime to n (in ascending order). For the empty rows n = 1, 2, 3, 4 and 6 we set by convention 0.

Table of values

List of values

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

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

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