A231334 - cp's OEIS frontend

A231334 Lexicographically earliest sequence of distinct positive integers such that for any distinct i,j, k, the points at positions (i, a(i)), (j, a(j)), (k, a(k)) are not aligned.

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	9
8	12
9	7
10	14
11	13
12	8
13	23
14	17
15	18
16	22
17	10
18	15
19	11
20	28
21	19
22	16
23	20
24	29
25	32
26	44
27	35
28	39
29	24
30	40
31	26
32	37
33	42
34	21
35	56
36	64
37	43
38	31
39	25
40	34
41	27
42	33
43	66
44	67
45	52
46	60
47	30
48	57
49	36
50	63
51	86
52	82
53	38
54	50
55	47
56	69
57	75
58	79
59	89
60	49
61	45
62	76
63	41
64	48
65	98
66	77
67	94

[1, 2, 4, 3, 6, 5, 9, 12, 7, 14, 13, 8, 23, 17, 18, 22, 10, 15, 11, 28, 19, 16, 20, 29, 32, 44, 35, 39, 24, 40, 26, 37, 42, 21, 56, 64, 43, 31, 25, 34, 27, 33, 66, 67, 52, 60, 30, 57, 36, 63, 86, 82, 38, 50, 47, 69, 75, 79, 89, 49, 45, 76, 41, 48, 98, 77, 94]

cp's OEIS Frontend

A231334 Lexicographically earliest sequence of distinct positive integers such that for any distinct i,j, k, the points at positions (i, a(i)), (j, a(j)), (k, a(k)) are not aligned.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	9
8	12
9	7
10	14
11	13
12	8
13	23
14	17
15	18
16	22
17	10
18	15
19	11
20	28
21	19
22	16
23	20
24	29
25	32
26	44
27	35
28	39
29	24
30	40
31	26
32	37
33	42
34	21
35	56
36	64
37	43
38	31
39	25
40	34
41	27
42	33
43	66
44	67
45	52
46	60
47	30
48	57
49	36
50	63
51	86
52	82
53	38
54	50
55	47
56	69
57	75
58	79
59	89
60	49
61	45
62	76
63	41
64	48
65	98
66	77
67	94

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	9
8	12
9	7
10	14
11	13
12	8
13	23
14	17
15	18
16	22
17	10
18	15
19	11
20	28
21	19
22	16
23	20
24	29
25	32
26	44
27	35
28	39
29	24
30	40
31	26
32	37
33	42
34	21
35	56
36	64
37	43
38	31
39	25
40	34
41	27
42	33
43	66
44	67
45	52
46	60
47	30
48	57
49	36
50	63
51	86
52	82
53	38
54	50
55	47
56	69
57	75
58	79
59	89
60	49
61	45
62	76
63	41
64	48
65	98
66	77
67	94

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	5
7	9
8	12
9	7
10	14
11	13
12	8
13	23
14	17
15	18
16	22
17	10
18	15
19	11
20	28
21	19
22	16
23	20
24	29
25	32
26	44
27	35
28	39
29	24
30	40
31	26
32	37
33	42
34	21
35	56
36	64
37	43
38	31
39	25
40	34
41	27
42	33
43	66
44	67
45	52
46	60
47	30
48	57
49	36
50	63
51	86
52	82
53	38
54	50
55	47
56	69
57	75
58	79
59	89
60	49
61	45
62	76
63	41
64	48
65	98
66	77
67	94