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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.

A063882 a(n) = a(n - a(n - 1)) + a(n - a(n - 4)), with a(1) = ... = a(4) = 1.

Table of values

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

List of values

[1, 1, 1, 1, 2, 3, 4, 5, 5, 6, 6, 7, 8, 8, 9, 9, 10, 11, 11, 11, 12, 12, 13, 14, 14, 15, 15, 16, 17, 17, 17, 18, 18, 19, 20, 20, 21, 21, 22, 22, 22, 23, 23, 24, 25, 25, 26, 26, 27, 27, 28, 29, 29, 29, 30, 30, 31, 32, 32, 33, 33, 34, 34, 34, 35, 35, 36, 37, 37, 38, 38, 39, 39, 40]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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