A264482 - cp's OEIS frontend

A264482 Triangle T(n,k) (1 <= k <= n) read by rows: row n lists the set of n coprime numbers that minimizes the difference between first and last terms, and then minimizes the average of the terms.

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

[1, 1, 2, 1, 2, 3, 1, 2, 3, 5, 1, 2, 3, 5, 7, 5, 7, 8, 9, 11, 13, 1, 2, 3, 5, 7, 11, 13, 5, 7, 8, 9, 11, 13, 17, 19, 1, 2, 3, 5, 7, 11, 13, 17, 19, 11, 13, 16, 17, 19, 21, 23, 25, 29, 31, 7, 8, 9, 11, 13, 17, 19, 23, 25, 29, 31, 1, 2, 3, 5, 7, 11, 13, 17, 19]

cp's OEIS Frontend

A264482 Triangle T(n,k) (1 <= k <= n) read by rows: row n lists the set of n coprime numbers that minimizes the difference between first and last terms, and then minimizes the average of the terms.

Table of values

List of values

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

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

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