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.

A375921 a(n) = LCM(1,2, ..., 2n+1)/6.

Table of values

n a(n)
1 1
2 10
3 70
4 420
5 4620
6 60060
7 60060
8 2042040
9 38798760
10 38798760
11 892371480
12 4461857400
13 13385572200
14 388181593800
15 12033629407800
16 24067258815600
17 24067258815600
18 890488576177200
19 890488576177200
20 36510031623265200
21 1569931359800403600
22 1569931359800403600

List of values

[1, 10, 70, 420, 4620, 60060, 60060, 2042040, 38798760, 38798760, 892371480, 4461857400, 13385572200, 388181593800, 12033629407800, 24067258815600, 24067258815600, 890488576177200, 890488576177200, 36510031623265200, 1569931359800403600, 1569931359800403600]

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

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