A005839 - cp's OEIS frontend

A005839 Lexicographically earliest increasing nonnegative sequence that contains no 4-term arithmetic progression.

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	7
7	8
8	9
9	14
10	15
11	16
12	18
13	25
14	26
15	28
16	29
17	30
18	33
19	36
20	48
21	49
22	50
23	52
24	53
25	55
26	56
27	57
28	62
29	64
30	65
31	66
32	79
33	86
34	87
35	88
36	90
37	93
38	98
39	101
40	104
41	105
42	108
43	109
44	110
45	121
46	125
47	135
48	144
49	148
50	150
51	151
52	159
53	162
54	166
55	168
56	169
57	170
58	173
59	175
60	176
61	182

[0, 1, 2, 4, 5, 7, 8, 9, 14, 15, 16, 18, 25, 26, 28, 29, 30, 33, 36, 48, 49, 50, 52, 53, 55, 56, 57, 62, 64, 65, 66, 79, 86, 87, 88, 90, 93, 98, 101, 104, 105, 108, 109, 110, 121, 125, 135, 144, 148, 150, 151, 159, 162, 166, 168, 169, 170, 173, 175, 176, 182]

cp's OEIS Frontend

A005839 Lexicographically earliest increasing nonnegative sequence that contains no 4-term arithmetic progression.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	7
7	8
8	9
9	14
10	15
11	16
12	18
13	25
14	26
15	28
16	29
17	30
18	33
19	36
20	48
21	49
22	50
23	52
24	53
25	55
26	56
27	57
28	62
29	64
30	65
31	66
32	79
33	86
34	87
35	88
36	90
37	93
38	98
39	101
40	104
41	105
42	108
43	109
44	110
45	121
46	125
47	135
48	144
49	148
50	150
51	151
52	159
53	162
54	166
55	168
56	169
57	170
58	173
59	175
60	176
61	182

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	7
7	8
8	9
9	14
10	15
11	16
12	18
13	25
14	26
15	28
16	29
17	30
18	33
19	36
20	48
21	49
22	50
23	52
24	53
25	55
26	56
27	57
28	62
29	64
30	65
31	66
32	79
33	86
34	87
35	88
36	90
37	93
38	98
39	101
40	104
41	105
42	108
43	109
44	110
45	121
46	125
47	135
48	144
49	148
50	150
51	151
52	159
53	162
54	166
55	168
56	169
57	170
58	173
59	175
60	176
61	182

n	a(n)
1	0
2	1
3	2
4	4
5	5
6	7
7	8
8	9
9	14
10	15
11	16
12	18
13	25
14	26
15	28
16	29
17	30
18	33
19	36
20	48
21	49
22	50
23	52
24	53
25	55
26	56
27	57
28	62
29	64
30	65
31	66
32	79
33	86
34	87
35	88
36	90
37	93
38	98
39	101
40	104
41	105
42	108
43	109
44	110
45	121
46	125
47	135
48	144
49	148
50	150
51	151
52	159
53	162
54	166
55	168
56	169
57	170
58	173
59	175
60	176
61	182