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.

A089908 Sum of digits of numbers between 0 and (7/9)*(10^n-1).

Table of values

n a(n)
0 0
1 28
2 609
3 9555
4 130501
5 1654947
6 20049393
7 235493839
8 2704938285
9 30549382731
10 340493827177
11 3754938271623
12 41049382716069
13 445493827160515
14 4804938271604961
15 51549382716049407
16 550493827160493853

List of values

[0, 28, 609, 9555, 130501, 1654947, 20049393, 235493839, 2704938285, 30549382731, 340493827177, 3754938271623, 41049382716069, 445493827160515, 4804938271604961, 51549382716049407, 550493827160493853]

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

Content is available under The OEIS End-User License Agreement.