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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.

A329571 a(n) = Product_{prime p} p^floor(log_p P) with P = A329570(n) the least prime with log_p P >= valuation(n,p) for all primes p.

Table of values

n a(n)
1 2
2 2
3 6
4 60
5 60
6 6
7 420
8 27720
9 27720
10 60
11 27720
12 60
13 360360
14 420
15 60
16 12252240
17 12252240
18 27720
19 232792560
20 60
21 420
22 27720
23 5354228880
24 27720
25 2329089562800
26 360360
27 2329089562800
28 420
29 2329089562800
30 60
31 72201776446800
32 5342931457063200
33 27720
34 12252240
35 420
36 27720
37 5342931457063200
38 232792560
39 360360
40 27720
41 219060189739591200
42 420
43 9419588158802421600
44 27720

List of values

[2, 2, 6, 60, 60, 6, 420, 27720, 27720, 60, 27720, 60, 360360, 420, 60, 12252240, 12252240, 27720, 232792560, 60, 420, 27720, 5354228880, 27720, 2329089562800, 360360, 2329089562800, 420, 2329089562800, 60, 72201776446800, 5342931457063200, 27720, 12252240, 420, 27720, 5342931457063200, 232792560, 360360, 27720, 219060189739591200, 420, 9419588158802421600, 27720]

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

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