A375110 - cp's OEIS frontend

A375110 Lexicographically earliest sequence of positive integers such that the pairs (a(n) mod a(n+1), a(n+1)) are all distinct.

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

[1, 1, 2, 2, 3, 3, 4, 3, 5, 4, 4, 5, 5, 6, 4, 6, 5, 7, 5, 8, 6, 6, 7, 6, 8, 7, 7, 8, 8, 9, 6, 9, 7, 9, 8, 10, 7, 10, 8, 11, 7, 11, 8, 12, 8, 13, 9, 9, 10, 9, 11, 9, 12, 9, 13, 10, 10, 11, 10, 12, 10, 13, 11, 11, 12, 11, 13, 12, 12, 13, 13, 14, 9, 14, 10, 14, 11]

cp's OEIS Frontend

A375110 Lexicographically earliest sequence of positive integers such that the pairs (a(n) mod a(n+1), a(n+1)) are all distinct.

Table of values

List of values

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

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

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