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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.

A271498 Smallest number in the trajectory of n under repeated application of the map k -> A271497(k).

Table of values

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

List of values

[1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 7, 1, 7, 7, 1, 1, 1, 1, 7, 1, 7, 7, 1, 1, 7, 7, 1, 7, 1, 1, 31, 7, 7, 1, 7, 1, 7, 7, 7, 1, 7, 7, 7, 7, 1, 7, 31, 1, 7, 7, 1, 7, 7, 1, 31, 7, 7, 7, 31, 1, 31, 31, 7, 7, 7, 7, 7, 7, 1, 7, 1, 1, 7, 7, 7, 7, 1, 7, 31, 7, 1, 7, 1, 7, 1, 1, 1, 7, 1, 1, 31, 1, 31, 31, 7, 7, 7, 7]

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

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