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.

A097000 A062401(x)=phi[sigma(x)] function is iterated; initial value=2^n; a(n)=smallest term of trajectory.

Table of values

n a(n)
1 2
2 4
3 8
4 16
5 32
6 64
7 128
8 256
9 432
10 1024
11 1728
12 4096
13 1800
14 7200
15 32768
16 65536
17 131072
18 262144
19 326592
20 1036800
21 1658880
22 4194304
23 4838400
24 16777216
25 33554432
26 67108864
27 82301184
28 207360000
29 361267200
30 414720000

List of values

[2, 4, 8, 16, 32, 64, 128, 256, 432, 1024, 1728, 4096, 1800, 7200, 32768, 65536, 131072, 262144, 326592, 1036800, 1658880, 4194304, 4838400, 16777216, 33554432, 67108864, 82301184, 207360000, 361267200, 414720000]

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

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