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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A377079 a(1)=1; thereafter a(n) is the smallest k for which the subsequence a(n-k..n-1) has a distinct ordinal transform from that of any other subsequence of the sequence thus far.

Table of values

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

List of values

[1, 1, 2, 2, 3, 4, 3, 4, 4, 4, 3, 4, 4, 5, 5, 5, 5, 4, 5, 6, 5, 5, 5, 6, 7, 5, 5, 6, 6, 7, 6, 6, 7, 6, 7, 5, 5, 6, 7, 6, 7, 8, 6, 6, 7, 7, 8, 9, 7, 6, 4, 5, 6, 5, 6, 7, 7, 7, 8, 6, 7, 7, 8, 9, 7, 8, 6, 7, 6, 7, 8, 9, 6, 7, 7, 6, 7, 8, 6, 6, 7, 8, 7, 8, 9, 10, 7]

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