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.

A113605 a(1) = a(2) = a(3) = 1; a(n) = a(n-3) + gcd(a(n-1), a(n-2)).

Table of values

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

List of values

[1, 1, 1, 2, 2, 3, 3, 5, 4, 4, 9, 5, 5, 14, 6, 7, 15, 7, 8, 16, 15, 9, 19, 16, 10, 21, 17, 11, 22, 28, 13, 23, 29, 14, 24, 31, 15, 25, 36, 16, 29, 37, 17, 30, 38, 19, 49, 39, 20, 50, 49, 21, 57, 52, 22, 59, 53, 23, 60, 54, 29, 61, 55, 30, 66, 61, 31, 67, 62, 32, 69, 63, 35, 76, 64]

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

Content is available under The OEIS End-User License Agreement.