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.

A133144 Start with n and repeatedly apply the powerback map of A133048. Sequence gives number of steps to the point where the next number would be one that has appeared before.

Table of values

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

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 4, 6, 3, 2, 1, 1, 1, 7, 3, 2, 3, 6, 3, 7, 1, 1, 2, 2, 4, 3, 3, 3, 2, 5, 1, 1, 2, 5, 2, 2, 6, 5, 4, 2, 1, 1, 3, 7, 2, 4, 4, 5, 4, 5, 1, 1, 4, 4, 5, 2, 3, 6, 4, 3, 1, 1, 4, 5, 3, 5, 5, 3, 4, 5, 1, 1, 3, 9, 4, 6, 2, 2, 5, 3]