A370408 - cp's OEIS frontend

A370408 Lexicographically earliest sequence of positive integers such that no three equal terms appear at distinct indices that are the side lengths of a triangle.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	3
10	2
11	4
12	4
13	1
14	5
15	5
16	2
17	3
18	6
19	6
20	7
21	1
22	7
23	4
24	8
25	8
26	2
27	3
28	9
29	5
30	9
31	10
32	10
33	11
34	1
35	4
36	11
37	6
38	12
39	12
40	13
41	13
42	2
43	7
44	3
45	5
46	14
47	14
48	15
49	8
50	15
51	16
52	16
53	17
54	17
55	1
56	6
57	18
58	4
59	9
60	18
61	19
62	19
63	10
64	20
65	7
66	20
67	21
68	2
69	11
70	21
71	3
72	22
73	22
74	5
75	8
76	23
77	12
78	23
79	24
80	24
81	13
82	25
83	25
84	26
85	26
86	27
87	27
88	28
89	1
90	9
91	28
92	29
93	4

[1, 1, 1, 2, 1, 2, 3, 1, 3, 2, 4, 4, 1, 5, 5, 2, 3, 6, 6, 7, 1, 7, 4, 8, 8, 2, 3, 9, 5, 9, 10, 10, 11, 1, 4, 11, 6, 12, 12, 13, 13, 2, 7, 3, 5, 14, 14, 15, 8, 15, 16, 16, 17, 17, 1, 6, 18, 4, 9, 18, 19, 19, 10, 20, 7, 20, 21, 2, 11, 21, 3, 22, 22, 5, 8, 23, 12, 23, 24, 24, 13, 25, 25, 26, 26, 27, 27, 28, 1, 9, 28, 29, 4]

cp's OEIS Frontend

A370408 Lexicographically earliest sequence of positive integers such that no three equal terms appear at distinct indices that are the side lengths of a triangle.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	3
10	2
11	4
12	4
13	1
14	5
15	5
16	2
17	3
18	6
19	6
20	7
21	1
22	7
23	4
24	8
25	8
26	2
27	3
28	9
29	5
30	9
31	10
32	10
33	11
34	1
35	4
36	11
37	6
38	12
39	12
40	13
41	13
42	2
43	7
44	3
45	5
46	14
47	14
48	15
49	8
50	15
51	16
52	16
53	17
54	17
55	1
56	6
57	18
58	4
59	9
60	18
61	19
62	19
63	10
64	20
65	7
66	20
67	21
68	2
69	11
70	21
71	3
72	22
73	22
74	5
75	8
76	23
77	12
78	23
79	24
80	24
81	13
82	25
83	25
84	26
85	26
86	27
87	27
88	28
89	1
90	9
91	28
92	29
93	4

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	3
10	2
11	4
12	4
13	1
14	5
15	5
16	2
17	3
18	6
19	6
20	7
21	1
22	7
23	4
24	8
25	8
26	2
27	3
28	9
29	5
30	9
31	10
32	10
33	11
34	1
35	4
36	11
37	6
38	12
39	12
40	13
41	13
42	2
43	7
44	3
45	5
46	14
47	14
48	15
49	8
50	15
51	16
52	16
53	17
54	17
55	1
56	6
57	18
58	4
59	9
60	18
61	19
62	19
63	10
64	20
65	7
66	20
67	21
68	2
69	11
70	21
71	3
72	22
73	22
74	5
75	8
76	23
77	12
78	23
79	24
80	24
81	13
82	25
83	25
84	26
85	26
86	27
87	27
88	28
89	1
90	9
91	28
92	29
93	4

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	3
8	1
9	3
10	2
11	4
12	4
13	1
14	5
15	5
16	2
17	3
18	6
19	6
20	7
21	1
22	7
23	4
24	8
25	8
26	2
27	3
28	9
29	5
30	9
31	10
32	10
33	11
34	1
35	4
36	11
37	6
38	12
39	12
40	13
41	13
42	2
43	7
44	3
45	5
46	14
47	14
48	15
49	8
50	15
51	16
52	16
53	17
54	17
55	1
56	6
57	18
58	4
59	9
60	18
61	19
62	19
63	10
64	20
65	7
66	20
67	21
68	2
69	11
70	21
71	3
72	22
73	22
74	5
75	8
76	23
77	12
78	23
79	24
80	24
81	13
82	25
83	25
84	26
85	26
86	27
87	27
88	28
89	1
90	9
91	28
92	29
93	4