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.

A209079 Integer part of sigma(m)*phi(m)/m for colossally abundant numbers m.

Table of values

n a(n)
1 1
2 4
3 9
4 44
5 96
6 312
7 2139
8 4421
9 48234
10 623336
11 1266781
12 3897787
13 20138571
14 341171088
15 6464294306
16 148397712765
17 299150944780
18 8665061848812
19 268337399189042
20 1911903969221925
21 5783509506896323
22 213833540687410017

List of values

[1, 4, 9, 44, 96, 312, 2139, 4421, 48234, 623336, 1266781, 3897787, 20138571, 341171088, 6464294306, 148397712765, 299150944780, 8665061848812, 268337399189042, 1911903969221925, 5783509506896323, 213833540687410017]

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

Content is available under The OEIS End-User License Agreement.