A376570 - cp's OEIS frontend

A376570 Table T(n, k), n > 1, k = 1..n-1, read by rows; T(n, k) is the least m such that the points (m, prime(m)), (k, prime(k)) and (n, prime(n)) are aligned (where prime(k) denotes the k-th prime number).

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

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

cp's OEIS Frontend

A376570 Table T(n, k), n > 1, k = 1..n-1, read by rows; T(n, k) is the least m such that the points (m, prime(m)), (k, prime(k)) and (n, prime(n)) are aligned (where prime(k) denotes the k-th prime number).

Table of values

List of values

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

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

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