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 | 11 |
| 3 | 121 |
| 4 | 253 |
| 5 | 1331 |
| 6 | 2783 |
| 7 | 5819 |
| 8 | 11891 |
| 9 | 14641 |
| 10 | 30613 |
| 11 | 64009 |
| 12 | 130801 |
| 13 | 133837 |
| 14 | 161051 |
| 15 | 273493 |
| 16 | 336743 |
| 17 | 558877 |
| 18 | 704099 |
| 19 | 768361 |
| 20 | 849299 |
| 21 | 1438811 |
| 22 | 1472207 |
| 23 | 1771561 |
| 24 | 3008423 |
| 25 | 3078251 |
| 26 | 3544453 |
| 27 | 3704173 |
| 28 | 6147647 |
| 29 | 6290339 |
| 30 | 7745089 |