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.

A080825 Triangle read by rows in which n-th row gives trajectory of n (omitting n itself) under the map k -> k-1 if k odd, k -> k/2 if k even.

Table of values

n a(n)
2 1
3 2
4 1
5 2
6 1
7 4
8 2
9 1
10 3
11 2
12 1
13 6
14 3
15 2
16 1
17 4
18 2
19 1
20 8
21 4
22 2
23 1
24 5
25 4
26 2
27 1
28 10
29 5
30 4
31 2
32 1
33 6
34 3
35 2
36 1
37 12
38 6
39 3
40 2
41 1
42 7
43 6
44 3
45 2
46 1
47 14
48 7
49 6
50 3
51 2
52 1
53 8
54 4
55 2
56 1
57 16
58 8
59 4
60 2
61 1
62 9
63 8
64 4
65 2
66 1
67 18
68 9
69 8
70 4
71 2
72 1
73 10
74 5
75 4
76 2
77 1
78 20
79 10
80 5
81 4
82 2
83 1
84 11
85 10
86 5
87 4
88 2
89 1
90 22
91 11
92 10
93 5
94 4
95 2
96 1
97 12
98 6
99 3

List of values

[1, 2, 1, 2, 1, 4, 2, 1, 3, 2, 1, 6, 3, 2, 1, 4, 2, 1, 8, 4, 2, 1, 5, 4, 2, 1, 10, 5, 4, 2, 1, 6, 3, 2, 1, 12, 6, 3, 2, 1, 7, 6, 3, 2, 1, 14, 7, 6, 3, 2, 1, 8, 4, 2, 1, 16, 8, 4, 2, 1, 9, 8, 4, 2, 1, 18, 9, 8, 4, 2, 1, 10, 5, 4, 2, 1, 20, 10, 5, 4, 2, 1, 11, 10, 5, 4, 2, 1, 22, 11, 10, 5, 4, 2, 1, 12, 6, 3]