A287920 - cp's OEIS frontend

A287920 Triangle T(n,k) read by rows: T(n,k) = floor(prime(n)/prime(k)), n >= k >= 1.

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

[1, 1, 1, 2, 1, 1, 3, 2, 1, 1, 5, 3, 2, 1, 1, 6, 4, 2, 1, 1, 1, 8, 5, 3, 2, 1, 1, 1, 9, 6, 3, 2, 1, 1, 1, 1, 11, 7, 4, 3, 2, 1, 1, 1, 1, 14, 9, 5, 4, 2, 2, 1, 1, 1, 1, 15, 10, 6, 4, 2, 2, 1, 1, 1, 1, 1, 18, 12, 7, 5, 3, 2, 2, 1, 1, 1, 1, 1, 20, 13, 8, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1]

cp's OEIS Frontend

A287920 Triangle T(n,k) read by rows: T(n,k) = floor(prime(n)/prime(k)), n >= k >= 1.

Table of values

List of values

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

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

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