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.

A147665 a(n) = a(a(n - 1)) + r(n) for n >= 3, where r(3*k) = a(a(k)), r(3*k+1) = a(a(k)) and r(3*k+2) = a(n-a(k)), with a(0) = 0 and a(1) = a(2) = 1.

Table of values

n a(n)
0 0
1 1
2 1
3 2
4 2
5 3
6 3
7 3
8 5
9 4
10 3
11 6
12 4
13 3
14 6
15 5
16 5
17 9
18 6
19 5
20 12
21 6
22 5
23 15
24 8
25 8
26 11
27 8
28 7
29 11
30 8
31 7
32 14
33 9
34 7
35 14
36 8
37 7
38 10
39 5
40 5
41 13
42 6
43 6
44 13
45 6
46 6
47 9
48 7
49 6
50 9
51 8
52 9
53 17
54 12
55 7
56 12
57 7
58 6
59 15
60 9
61 8
62 14
63 9
64 7
65 18
66 9
67 7
68 12
69 9
70 9
71 16
72 10
73 8
74 14
75 11
76 11
77 15
78 11
79 12
80 13
81 8
82 10
83 14
84 9
85 7
86 15
87 11
88 12
89 15

List of values

[0, 1, 1, 2, 2, 3, 3, 3, 5, 4, 3, 6, 4, 3, 6, 5, 5, 9, 6, 5, 12, 6, 5, 15, 8, 8, 11, 8, 7, 11, 8, 7, 14, 9, 7, 14, 8, 7, 10, 5, 5, 13, 6, 6, 13, 6, 6, 9, 7, 6, 9, 8, 9, 17, 12, 7, 12, 7, 6, 15, 9, 8, 14, 9, 7, 18, 9, 7, 12, 9, 9, 16, 10, 8, 14, 11, 11, 15, 11, 12, 13, 8, 10, 14, 9, 7, 15, 11, 12, 15]