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.

A072340 Number of steps to reach an integer starting with n/3 and iterating the map x -> x*ceiling(x), or -1 if no integer is ever reached.

Table of values

n a(n)
3 0
4 2
5 6
6 0
7 1
8 1
9 0
10 5
11 2
12 0
13 3
14 2
15 0
16 1
17 1
18 0
19 2
20 4
21 0
22 3
23 4
24 0
25 1
26 1
27 0
28 22
29 7
30 0
31 2
32 5
33 0
34 1
35 1
36 0
37 7
38 2
39 0
40 4
41 2
42 0
43 1
44 1
45 0
46 2
47 5
48 0
49 13
50 9
51 0
52 1
53 1
54 0
55 3
56 3
57 0
58 2
59 3
60 0
61 1
62 1
63 0
64 3
65 2
66 0
67 5
68 2
69 0
70 1
71 1
72 0
73 2
74 3
75 0
76 8
77 3
78 0
79 1
80 1
81 0
82 5
83 4
84 0
85 2
86 4
87 0
88 1
89 1
90 0
91 14
92 2
93 0
94 3
95 2
96 0
97 1
98 1
99 0
100 2
101 9
102 0
103 3
104 9
105 0
106 1
107 1

List of values

[0, 2, 6, 0, 1, 1, 0, 5, 2, 0, 3, 2, 0, 1, 1, 0, 2, 4, 0, 3, 4, 0, 1, 1, 0, 22, 7, 0, 2, 5, 0, 1, 1, 0, 7, 2, 0, 4, 2, 0, 1, 1, 0, 2, 5, 0, 13, 9, 0, 1, 1, 0, 3, 3, 0, 2, 3, 0, 1, 1, 0, 3, 2, 0, 5, 2, 0, 1, 1, 0, 2, 3, 0, 8, 3, 0, 1, 1, 0, 5, 4, 0, 2, 4, 0, 1, 1, 0, 14, 2, 0, 3, 2, 0, 1, 1, 0, 2, 9, 0, 3, 9, 0, 1, 1]