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.

A323653 Multiperfect numbers m such that sigma(m) is also multiperfect.

Table of values

n a(n)
1 1
2 459818240
3 51001180160
4 13188979363639752997731839211623940096
5 5157152737616023231698245840143799191339008
6 54530444405217553992377326508106948362108928
7 133821156044600922812153118065015159487725568
8 4989680372093758991515359988337845750507257510078971904

List of values

[1, 459818240, 51001180160, 13188979363639752997731839211623940096, 5157152737616023231698245840143799191339008, 54530444405217553992377326508106948362108928, 133821156044600922812153118065015159487725568, 4989680372093758991515359988337845750507257510078971904]

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

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