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.

A105669 A "fractal" transform of the Fibonacci numbers F(n)=A000045(n): a(1)=1, then for n>1 if F(n) < k < F(n+1) we have a(k) = F(n+1)-a(k-F(n)) and when k = F(n+1) we force a(F(n+1)) = F(n+1) + (1+(-1)^n)*F(n).

Table of values

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

List of values

[1, 2, 2, 4, 7, 7, 6, 6, 12, 11, 11, 9, 20, 20, 19, 19, 17, 14, 14, 15, 15, 33, 32, 32, 30, 27, 27, 28, 28, 22, 23, 23, 25, 54, 54, 53, 53, 51, 48, 48, 49, 49, 43, 44, 44, 46, 35, 35, 36, 36, 38, 41, 41, 40, 40, 88, 87, 87, 85, 82, 82, 83, 83, 77, 78, 78, 80, 69, 69, 70, 70, 72]