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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.

A132928 Concatenation of first n perfect numbers.

Table of values

n a(n)
1 6
2 628
3 628496
4 6284968128
5 628496812833550336
6 6284968128335503368589869056
7 6284968128335503368589869056137438691328
8 62849681283355033685898690561374386913282305843008139952128

List of values

[6, 628, 628496, 6284968128, 628496812833550336, 6284968128335503368589869056, 6284968128335503368589869056137438691328, 62849681283355033685898690561374386913282305843008139952128]

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

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