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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.

A308260 a(n) = Product_{k=1..n, gcd(n,k) = 1} prime(k).

Table of values

n a(n)
0 1
1 2
2 2
3 6
4 10
5 210
6 22
7 30030
8 1870
9 149226
10 3910
11 6469693230
12 11594
13 7420738134810
14 3215630
15 741422598
16 2569288370
17 32589158477190044730
18 28045886
19 117288381359406970983270
20 19644868330
21 4812825965463978
22 23916676633630
23 3217644767340672907899084554130

List of values

[1, 2, 2, 6, 10, 210, 22, 30030, 1870, 149226, 3910, 6469693230, 11594, 7420738134810, 3215630, 741422598, 2569288370, 32589158477190044730, 28045886, 117288381359406970983270, 19644868330, 4812825965463978, 23916676633630, 3217644767340672907899084554130]

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

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