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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.

A165774 Largest solution to phi(x) = n!, where phi() is Euler totient function (A000010).

Table of values

n a(n)
1 2
2 6
3 18
4 90
5 462
6 3150
7 22050
8 210210
9 1891890
10 19969950
11 219669450
12 2847714870
13 37020293310
14 520843112790
15 7959363061650
16 135309172048050
17 2300255924816850
18 41996101027370490
19 797925919520039310
20 16504589035937252250
21 347097774991217099850
22 7751850308137181896650
23 179602728970220622816750
24 4493489228616853106091450
25 112337230715421327652286250
26 2958213742172761628176871250
27 79871771038664563960775523750
28 2279417465795734863803670716250

List of values

[2, 6, 18, 90, 462, 3150, 22050, 210210, 1891890, 19969950, 219669450, 2847714870, 37020293310, 520843112790, 7959363061650, 135309172048050, 2300255924816850, 41996101027370490, 797925919520039310, 16504589035937252250, 347097774991217099850, 7751850308137181896650, 179602728970220622816750, 4493489228616853106091450, 112337230715421327652286250, 2958213742172761628176871250, 79871771038664563960775523750, 2279417465795734863803670716250]

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