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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.

A329934 a(1)=1, a(2)=1, a(n) = (number of times a(n-1) has appeared before) + (number of times a(n-2) has appeared before).

Table of values

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

List of values

[1, 1, 4, 3, 2, 2, 4, 4, 6, 4, 5, 5, 4, 7, 6, 3, 4, 8, 7, 3, 5, 6, 6, 8, 6, 7, 8, 6, 9, 7, 5, 8, 8, 10, 6, 8, 13, 7, 6, 13, 10, 4, 9, 9, 6, 12, 10, 4, 11, 9, 5, 9, 10, 9, 10, 11, 7, 8, 13, 10, 9, 13, 11, 7, 10, 14, 8, 9, 16, 9, 10, 17, 9, 11, 14, 6, 12, 12, 6, 14, 14]

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