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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.

A342867 a(n) is the least number k such that the continued fraction for phi(k)/k contains exactly n elements.

Table of values

n a(n)
1 1
2 2
3 3
4 15
5 35
6 33
7 65
8 215
9 221
10 551
11 455
12 2001
13 3417
14 3621
15 11523
16 16705
17 16617
18 69845
19 107545
20 157285
21 324569
22 358883
23 1404949
24 1569295
25 3783970
26 3106285
27 7536065
28 12216295
29 10589487
30 24038979
31 57759065
32 51961945
33 177005465
34 131462695
35 741703701
36 1467144445

List of values

[1, 2, 3, 15, 35, 33, 65, 215, 221, 551, 455, 2001, 3417, 3621, 11523, 16705, 16617, 69845, 107545, 157285, 324569, 358883, 1404949, 1569295, 3783970, 3106285, 7536065, 12216295, 10589487, 24038979, 57759065, 51961945, 177005465, 131462695, 741703701, 1467144445]

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

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