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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.

A034981 Smallest square starting with a string of n 2's.

Table of values

n a(n)
1 25
2 225
3 22201
4 22221796
5 2222273881
6 222222674025
7 2222222266944
8 2222222266944
9 222222222419239441
10 2222222222222640225
11 2222222222222640225
12 2222222222222640225
13 2222222222222640225
14 2222222222222206355369284609
15 22222222222222228256442000196
16 22222222222222228256442000196
17 222222222222222222935940601965604
18 222222222222222222935940601965604
19 222222222222222222284545443509812489
20 222222222222222222220398849165671296576

List of values

[25, 225, 22201, 22221796, 2222273881, 222222674025, 2222222266944, 2222222266944, 222222222419239441, 2222222222222640225, 2222222222222640225, 2222222222222640225, 2222222222222640225, 2222222222222206355369284609, 22222222222222228256442000196, 22222222222222228256442000196, 222222222222222222935940601965604, 222222222222222222935940601965604, 222222222222222222284545443509812489, 222222222222222222220398849165671296576]

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

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