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) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 23 |
| 3 | 51 |
| 4 | 79 |
| 5 | 253 |
| 6 | 270 |
| 7 | 320 |
| 8 | 366 |
| 9 | 2460 |
| 10 | 3844 |
| 11 | 14207 |
| 12 | 46819 |
| 13 | 68493 |