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.

A131699 Smallest number whose n-th power begins with precisely n identical digits (in base ten).

Table of values

n a(n)
1 1
2 15
3 322
4 167
5 6444
6 32183
7 7306
8 225418
9 6551032
10 683405939
11 7074698775
12 26331754107
13 844494314469
14 11303028458639
15 251188643150958
16 93364101391902
17 16114920282762613
18 239390020079624346
19 191165654339590395

List of values

[1, 15, 322, 167, 6444, 32183, 7306, 225418, 6551032, 683405939, 7074698775, 26331754107, 844494314469, 11303028458639, 251188643150958, 93364101391902, 16114920282762613, 239390020079624346, 191165654339590395]