A322936 - cp's OEIS frontend

A322936 Triangular array in which the n-th row lists the numbers strongly prime to n (in ascending order). For the empty rows n = 2, 3, 4 and 6 we set by convention 0.

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

[1, 0, 0, 0, 3, 0, 4, 5, 3, 5, 5, 7, 7, 3, 4, 6, 7, 8, 9, 5, 7, 5, 7, 8, 9, 10, 11, 3, 5, 9, 11, 4, 8, 11, 13, 7, 9, 11, 13, 3, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 5, 7, 11, 13, 4, 5, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 3, 7, 9, 11, 13, 17, 8, 11, 13, 16, 17, 19]

cp's OEIS Frontend

A322936 Triangular array in which the n-th row lists the numbers strongly prime to n (in ascending order). For the empty rows n = 2, 3, 4 and 6 we set by convention 0.

Table of values

List of values

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

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

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