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.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 16 |
| 3 | 36 |
| 4 | 361 |
| 5 | 3136 |
| 6 | 136161 |
| 7 | 633616 |
| 8 | 1313316 |
| 9 | 1336336 |
| 10 | 13366336 |
| 11 | 66113161 |
| 12 | 363131136 |
| 13 | 1616361616 |
| 14 | 6661661161 |
| 15 | 66631613161 |
| 16 | 31633661633161 |
| 17 | 613163131661161 |
| 18 | 131616316361116161 |
| 19 | 1166361161363316361 |
| 20 | 136113161636611666116 |
| 21 | 316661133333361663161316 |
| 22 | 11136331666361661633111616 |