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.

A319183 a(n) = phi(n^n - 1)/n where phi is A000010.

Table of values

n a(n)
2 1
3 4
4 32
5 280
6 5040
7 37856
8 829440
9 15676416
10 589032000
11 10374307328
12 388566097920
13 7619466454080
14 390751784579520
15 11138729990400000
16 575561351791902720
17 24328359845627701248
18 1640651748984970444800
19 34709116765970413844280
20 2459108342476800000000000

List of values

[1, 4, 32, 280, 5040, 37856, 829440, 15676416, 589032000, 10374307328, 388566097920, 7619466454080, 390751784579520, 11138729990400000, 575561351791902720, 24328359845627701248, 1640651748984970444800, 34709116765970413844280, 2459108342476800000000000]

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

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