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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.

A361807 Numbers k with record values of the ratio A000005(k)/A049419(k) between the number of divisors of k and the number of exponential divisors of k.

Table of values

n a(n)
1 1
2 2
3 6
4 30
5 210
6 2310
7 30030
8 480480
9 510510
10 8168160
11 9699690
12 155195040
13 223092870
14 3569485920
15 6469693230
16 103515091680
17 200560490130
18 3208967842080
19 7420738134810
20 118731810156960
21 304250263527210
22 4868004216435360
23 13082761331670030
24 209324181306720480

List of values

[1, 2, 6, 30, 210, 2310, 30030, 480480, 510510, 8168160, 9699690, 155195040, 223092870, 3569485920, 6469693230, 103515091680, 200560490130, 3208967842080, 7420738134810, 118731810156960, 304250263527210, 4868004216435360, 13082761331670030, 209324181306720480]

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

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