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.

A387027 a(n) = lcm({1, 2, ..., n}) * (n + 1) / n for n > 0, a(0) = 1.

Table of values

n a(n)
0 1
1 2
2 3
3 8
4 15
5 72
6 70
7 480
8 945
9 2800
10 2772
11 30240
12 30030
13 388080
14 386100
15 384384
16 765765
17 12972960
18 12932920
19 245044800
20 244432188
21 243877920
22 243374040
23 5587021440
24 5577321750
25 27841990176
26 27800803800
27 83288004800
28 83181770100
29 2409402996000
30 2406725881560

List of values

[1, 2, 3, 8, 15, 72, 70, 480, 945, 2800, 2772, 30240, 30030, 388080, 386100, 384384, 765765, 12972960, 12932920, 245044800, 244432188, 243877920, 243374040, 5587021440, 5577321750, 27841990176, 27800803800, 83288004800, 83181770100, 2409402996000, 2406725881560]