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.

A193257 Floor((10^n)/(log(10^n) - 1)).

Table of values

n a(n)
1 7
2 27
3 169
4 1217
5 9512
6 78030
7 661458
8 5740303
9 50701542
10 454011971
11 4110416300
12 37550193649
13 345618860220
14 3201414635780
15 29816233849000
16 279007258230819
17 2621647966812031
18 24723998785919976
19 233922961602470390
20 2219671974013732243

List of values

[7, 27, 169, 1217, 9512, 78030, 661458, 5740303, 50701542, 454011971, 4110416300, 37550193649, 345618860220, 3201414635780, 29816233849000, 279007258230819, 2621647966812031, 24723998785919976, 233922961602470390, 2219671974013732243]