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.

A295319 a(n) is the sum of all n-digit palindromes.

Table of values

n a(n)
1 45
2 495
3 49500
4 495000
5 49500000
6 495000000
7 49500000000
8 495000000000
9 49500000000000
10 495000000000000
11 49500000000000000
12 495000000000000000
13 49500000000000000000
14 495000000000000000000
15 49500000000000000000000
16 495000000000000000000000

List of values

[45, 495, 49500, 495000, 49500000, 495000000, 49500000000, 495000000000, 49500000000000, 495000000000000, 49500000000000000, 495000000000000000, 49500000000000000000, 495000000000000000000, 49500000000000000000000, 495000000000000000000000]

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

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