A005048 - cp's OEIS frontend

A005048 Minimal span of set of n elements with no 4-term arithmetic progression.

n	a(n)
4	4
5	5
6	7
7	8
8	9
9	12
10	14
11	16
12	18
13	20
14	22
15	24
16	26
17	27
18	29
19	32
20	33
21	36
22	39
23	42
24	44
25	47
26	49
27	52
28	53
29	57
30	59
31	63
32	65
33	67
34	69
35	73
36	76
37	78
38	81
39	83
40	86
41	90
42	92
43	96
44	98
45	100
46	103
47	104
48	106
49	111
50	113
51	119
52	121
53	125
54	128
55	131
56	133
57	137
58	140

[4, 5, 7, 8, 9, 12, 14, 16, 18, 20, 22, 24, 26, 27, 29, 32, 33, 36, 39, 42, 44, 47, 49, 52, 53, 57, 59, 63, 65, 67, 69, 73, 76, 78, 81, 83, 86, 90, 92, 96, 98, 100, 103, 104, 106, 111, 113, 119, 121, 125, 128, 131, 133, 137, 140]

cp's OEIS Frontend

A005048 Minimal span of set of n elements with no 4-term arithmetic progression.

Table of values

List of values

n	a(n)
4	4
5	5
6	7
7	8
8	9
9	12
10	14
11	16
12	18
13	20
14	22
15	24
16	26
17	27
18	29
19	32
20	33
21	36
22	39
23	42
24	44
25	47
26	49
27	52
28	53
29	57
30	59
31	63
32	65
33	67
34	69
35	73
36	76
37	78
38	81
39	83
40	86
41	90
42	92
43	96
44	98
45	100
46	103
47	104
48	106
49	111
50	113
51	119
52	121
53	125
54	128
55	131
56	133
57	137
58	140

n	a(n)
4	4
5	5
6	7
7	8
8	9
9	12
10	14
11	16
12	18
13	20
14	22
15	24
16	26
17	27
18	29
19	32
20	33
21	36
22	39
23	42
24	44
25	47
26	49
27	52
28	53
29	57
30	59
31	63
32	65
33	67
34	69
35	73
36	76
37	78
38	81
39	83
40	86
41	90
42	92
43	96
44	98
45	100
46	103
47	104
48	106
49	111
50	113
51	119
52	121
53	125
54	128
55	131
56	133
57	137
58	140

n	a(n)
4	4
5	5
6	7
7	8
8	9
9	12
10	14
11	16
12	18
13	20
14	22
15	24
16	26
17	27
18	29
19	32
20	33
21	36
22	39
23	42
24	44
25	47
26	49
27	52
28	53
29	57
30	59
31	63
32	65
33	67
34	69
35	73
36	76
37	78
38	81
39	83
40	86
41	90
42	92
43	96
44	98
45	100
46	103
47	104
48	106
49	111
50	113
51	119
52	121
53	125
54	128
55	131
56	133
57	137
58	140