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.

A306577 Last odd number reached by n before 1 through Collatz iteration, where a(n) = 1 when no other odd number is reached, or -1 if 1 is never reached.

Table of values

n a(n)
1 1
2 1
3 5
4 1
5 5
6 5
7 5
8 1
9 5
10 5
11 5
12 5
13 5
14 5
15 5
16 1
17 5
18 5
19 5
20 5
21 21
22 5
23 5
24 5
25 5
26 5
27 5
28 5
29 5
30 5
31 5
32 1
33 5
34 5
35 5
36 5
37 5
38 5
39 5
40 5
41 5
42 21
43 5
44 5
45 5
46 5
47 5
48 5
49 5
50 5
51 5
52 5
53 5
54 5
55 5
56 5
57 5
58 5
59 5
60 5
61 5
62 5
63 5
64 1
65 5
66 5
67 5
68 5
69 5
70 5
71 5
72 5
73 5
74 5
75 85
76 5
77 5
78 5
79 5
80 5
81 5
82 5
83 5
84 21
85 85
86 5
87 5
88 5
89 5
90 5
91 5
92 5
93 5
94 5
95 5
96 5
97 5
98 5
99 5
100 5
101 5

List of values

[1, 1, 5, 1, 5, 5, 5, 1, 5, 5, 5, 5, 5, 5, 5, 1, 5, 5, 5, 5, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 21, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 85, 5, 5, 5, 5, 5, 5, 5, 5, 21, 85, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5]