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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.

A258468 a(n) = lcm(n, n - tau(n)).

Table of values

n a(n)
1 0
2 0
3 3
4 4
5 15
6 6
7 35
8 8
9 18
10 30
11 99
12 12
13 143
14 70
15 165
16 176
17 255
18 36
19 323
20 140
21 357
22 198
23 483
24 48
25 550
26 286
27 621
28 308
29 783
30 330
31 899
32 416
33 957
34 510
35 1085
36 108
37 1295
38 646
39 1365
40 160
41 1599
42 714
43 1763
44 836
45 585
46 966
47 2115
48 912
49 2254
50 1100
51 2397
52 1196

List of values

[0, 0, 3, 4, 15, 6, 35, 8, 18, 30, 99, 12, 143, 70, 165, 176, 255, 36, 323, 140, 357, 198, 483, 48, 550, 286, 621, 308, 783, 330, 899, 416, 957, 510, 1085, 108, 1295, 646, 1365, 160, 1599, 714, 1763, 836, 585, 966, 2115, 912, 2254, 1100, 2397, 1196]

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

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