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.

A078427 Sum of all the decimal digits of numbers from 1 to 10^n.

Table of values

n a(n)
1 46
2 901
3 13501
4 180001
5 2250001
6 27000001
7 315000001
8 3600000001
9 40500000001
10 450000000001
11 4950000000001
12 54000000000001
13 585000000000001
14 6300000000000001
15 67500000000000001
16 720000000000000001
17 7650000000000000001
18 81000000000000000001

List of values

[46, 901, 13501, 180001, 2250001, 27000001, 315000001, 3600000001, 40500000001, 450000000001, 4950000000001, 54000000000001, 585000000000001, 6300000000000001, 67500000000000001, 720000000000000001, 7650000000000000001, 81000000000000000001]

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

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