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.

A033867 Palindrome reached from A033866(n) by Reverse-then-add.

Table of values

n a(n)
1 1
2 11
3 121
4 1111
5 4884
6 45254
7 44044
8 233332
9 233332
10 88555588
11 88555588
12 88555588
13 52788725
14 8836886388
15 8836886388
16 8836886388
17 5233333325
18 5233333325
19 89540004598
20 16967744776961
21 16668488486661
22 8813200023188

List of values

[1, 11, 121, 1111, 4884, 45254, 44044, 233332, 233332, 88555588, 88555588, 88555588, 52788725, 8836886388, 8836886388, 8836886388, 5233333325, 5233333325, 89540004598, 16967744776961, 16668488486661, 8813200023188]