A267305 - cp's OEIS frontend

A267305 Earliest positive increasing sequence having no 7-term subsequence with constant second differences.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	25
21	27
22	29
23	30
24	32
25	34
26	36
27	39
28	41
29	42
30	44
31	50
32	51
33	53
34	54
35	59
36	60
37	63
38	64
39	65
40	70
41	71
42	73
43	74
44	78
45	82
46	83

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 25, 27, 29, 30, 32, 34, 36, 39, 41, 42, 44, 50, 51, 53, 54, 59, 60, 63, 64, 65, 70, 71, 73, 74, 78, 82, 83]

cp's OEIS Frontend

A267305 Earliest positive increasing sequence having no 7-term subsequence with constant second differences.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	25
21	27
22	29
23	30
24	32
25	34
26	36
27	39
28	41
29	42
30	44
31	50
32	51
33	53
34	54
35	59
36	60
37	63
38	64
39	65
40	70
41	71
42	73
43	74
44	78
45	82
46	83

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	25
21	27
22	29
23	30
24	32
25	34
26	36
27	39
28	41
29	42
30	44
31	50
32	51
33	53
34	54
35	59
36	60
37	63
38	64
39	65
40	70
41	71
42	73
43	74
44	78
45	82
46	83

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	12
12	13
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	25
21	27
22	29
23	30
24	32
25	34
26	36
27	39
28	41
29	42
30	44
31	50
32	51
33	53
34	54
35	59
36	60
37	63
38	64
39	65
40	70
41	71
42	73
43	74
44	78
45	82
46	83