A005047 - cp's OEIS frontend

A005047 Minimal span of set of n elements with no 3-term arithmetic progression.

n	a(n)
1	0
2	1
3	3
4	4
5	8
6	10
7	12
8	13
9	19
10	23
11	25
12	29
13	31
14	35
15	39
16	40
17	50
18	53
19	57
20	62
21	70
22	73
23	81
24	83
25	91
26	94
27	99
28	103
29	110
30	113
31	120
32	121
33	136
34	144
35	149
36	156
37	162
38	164
39	168
40	173
41	193
42	203
43	208

[0, 1, 3, 4, 8, 10, 12, 13, 19, 23, 25, 29, 31, 35, 39, 40, 50, 53, 57, 62, 70, 73, 81, 83, 91, 94, 99, 103, 110, 113, 120, 121, 136, 144, 149, 156, 162, 164, 168, 173, 193, 203, 208]

cp's OEIS Frontend

A005047 Minimal span of set of n elements with no 3-term arithmetic progression.

Table of values

List of values

n	a(n)
1	0
2	1
3	3
4	4
5	8
6	10
7	12
8	13
9	19
10	23
11	25
12	29
13	31
14	35
15	39
16	40
17	50
18	53
19	57
20	62
21	70
22	73
23	81
24	83
25	91
26	94
27	99
28	103
29	110
30	113
31	120
32	121
33	136
34	144
35	149
36	156
37	162
38	164
39	168
40	173
41	193
42	203
43	208

n	a(n)
1	0
2	1
3	3
4	4
5	8
6	10
7	12
8	13
9	19
10	23
11	25
12	29
13	31
14	35
15	39
16	40
17	50
18	53
19	57
20	62
21	70
22	73
23	81
24	83
25	91
26	94
27	99
28	103
29	110
30	113
31	120
32	121
33	136
34	144
35	149
36	156
37	162
38	164
39	168
40	173
41	193
42	203
43	208

n	a(n)
1	0
2	1
3	3
4	4
5	8
6	10
7	12
8	13
9	19
10	23
11	25
12	29
13	31
14	35
15	39
16	40
17	50
18	53
19	57
20	62
21	70
22	73
23	81
24	83
25	91
26	94
27	99
28	103
29	110
30	113
31	120
32	121
33	136
34	144
35	149
36	156
37	162
38	164
39	168
40	173
41	193
42	203
43	208