A020664 - cp's OEIS frontend

A020664 Lexicographically earliest increasing sequence of positive numbers that contains no arithmetic progression of length 10.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	20
19	21
20	22
21	23
22	24
23	25
24	26
25	27
26	28
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	45
41	49
42	50
43	51
44	52
45	53
46	54
47	55
48	58
49	59
50	60
51	61
52	62
53	63
54	64
55	65
56	66
57	68
58	69
59	70
60	71
61	72
62	73
63	74
64	75
65	77
66	78
67	81
68	82
69	83
70	84
71	85
72	88
73	89
74	96
75	97

[1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 49, 50, 51, 52, 53, 54, 55, 58, 59, 60, 61, 62, 63, 64, 65, 66, 68, 69, 70, 71, 72, 73, 74, 75, 77, 78, 81, 82, 83, 84, 85, 88, 89, 96, 97]

cp's OEIS Frontend

A020664 Lexicographically earliest increasing sequence of positive numbers that contains no arithmetic progression of length 10.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	20
19	21
20	22
21	23
22	24
23	25
24	26
25	27
26	28
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	45
41	49
42	50
43	51
44	52
45	53
46	54
47	55
48	58
49	59
50	60
51	61
52	62
53	63
54	64
55	65
56	66
57	68
58	69
59	70
60	71
61	72
62	73
63	74
64	75
65	77
66	78
67	81
68	82
69	83
70	84
71	85
72	88
73	89
74	96
75	97

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	20
19	21
20	22
21	23
22	24
23	25
24	26
25	27
26	28
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	45
41	49
42	50
43	51
44	52
45	53
46	54
47	55
48	58
49	59
50	60
51	61
52	62
53	63
54	64
55	65
56	66
57	68
58	69
59	70
60	71
61	72
62	73
63	74
64	75
65	77
66	78
67	81
68	82
69	83
70	84
71	85
72	88
73	89
74	96
75	97

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	18
18	20
19	21
20	22
21	23
22	24
23	25
24	26
25	27
26	28
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	39
36	41
37	42
38	43
39	44
40	45
41	49
42	50
43	51
44	52
45	53
46	54
47	55
48	58
49	59
50	60
51	61
52	62
53	63
54	64
55	65
56	66
57	68
58	69
59	70
60	71
61	72
62	73
63	74
64	75
65	77
66	78
67	81
68	82
69	83
70	84
71	85
72	88
73	89
74	96
75	97