cp's OEIS Frontend

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.

A087777 a(1) = ... = a(4) = 1; a(n) = a(n - a(n-2)) + a(n - a(n-4)).

Table of values

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

List of values

[1, 1, 1, 1, 2, 4, 6, 7, 7, 5, 3, 8, 9, 11, 12, 9, 9, 13, 11, 9, 13, 16, 13, 19, 16, 11, 14, 16, 21, 22, 14, 14, 19, 17, 22, 27, 25, 16, 20, 28, 22, 22, 26, 25, 24, 32, 26, 22, 29, 29, 32, 35, 32, 27, 26, 34, 30, 33, 40, 25, 27, 46, 40, 33, 32, 28, 36, 50, 44, 31, 36, 38, 46, 53, 41, 29, 41]

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