A376571 - cp's OEIS frontend

A376571 Table T(n, k), n > 1, k = 1..n-1, read by rows; T(n, k) is the greatest 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	2
3	3
4	4
5	4
6	4
7	4
8	5
9	8
10	9
11	23
12	6
13	6
14	6
15	8
16	6
17	7
18	7
19	9
20	7
21	9
22	21
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	9
31	9
32	9
33	9
34	9
35	9
36	9
37	15
38	10
39	10
40	10
41	10
42	15
43	21
44	21
45	52
46	152
47	11
48	11
49	11
50	11
51	11
52	11
53	11
54	15
55	15
56	11
57	12
58	12
59	12
60	12
61	12
62	21
63	21
64	12
65	12
66	21
67	153
68	13
69	13
70	13
71	13
72	13
73	21
74	21
75	28
76	17
77	21
78	53
79	21

[2, 3, 4, 4, 4, 4, 5, 8, 9, 23, 6, 6, 6, 8, 6, 7, 7, 9, 7, 9, 21, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 15, 10, 10, 10, 10, 15, 21, 21, 52, 152, 11, 11, 11, 11, 11, 11, 11, 15, 15, 11, 12, 12, 12, 12, 12, 21, 21, 12, 12, 21, 153, 13, 13, 13, 13, 13, 21, 21, 28, 17, 21, 53, 21]

cp's OEIS Frontend

A376571 Table T(n, k), n > 1, k = 1..n-1, read by rows; T(n, k) is the greatest 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	2
3	3
4	4
5	4
6	4
7	4
8	5
9	8
10	9
11	23
12	6
13	6
14	6
15	8
16	6
17	7
18	7
19	9
20	7
21	9
22	21
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	9
31	9
32	9
33	9
34	9
35	9
36	9
37	15
38	10
39	10
40	10
41	10
42	15
43	21
44	21
45	52
46	152
47	11
48	11
49	11
50	11
51	11
52	11
53	11
54	15
55	15
56	11
57	12
58	12
59	12
60	12
61	12
62	21
63	21
64	12
65	12
66	21
67	153
68	13
69	13
70	13
71	13
72	13
73	21
74	21
75	28
76	17
77	21
78	53
79	21

n	a(n)
2	2
3	3
4	4
5	4
6	4
7	4
8	5
9	8
10	9
11	23
12	6
13	6
14	6
15	8
16	6
17	7
18	7
19	9
20	7
21	9
22	21
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	9
31	9
32	9
33	9
34	9
35	9
36	9
37	15
38	10
39	10
40	10
41	10
42	15
43	21
44	21
45	52
46	152
47	11
48	11
49	11
50	11
51	11
52	11
53	11
54	15
55	15
56	11
57	12
58	12
59	12
60	12
61	12
62	21
63	21
64	12
65	12
66	21
67	153
68	13
69	13
70	13
71	13
72	13
73	21
74	21
75	28
76	17
77	21
78	53
79	21

n	a(n)
2	2
3	3
4	4
5	4
6	4
7	4
8	5
9	8
10	9
11	23
12	6
13	6
14	6
15	8
16	6
17	7
18	7
19	9
20	7
21	9
22	21
23	8
24	8
25	8
26	8
27	8
28	8
29	8
30	9
31	9
32	9
33	9
34	9
35	9
36	9
37	15
38	10
39	10
40	10
41	10
42	15
43	21
44	21
45	52
46	152
47	11
48	11
49	11
50	11
51	11
52	11
53	11
54	15
55	15
56	11
57	12
58	12
59	12
60	12
61	12
62	21
63	21
64	12
65	12
66	21
67	153
68	13
69	13
70	13
71	13
72	13
73	21
74	21
75	28
76	17
77	21
78	53
79	21