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 | 2 |
| 2 | 31 |
| 3 | 98 |
| 4 | 277 |
| 5 | 1218 |
| 6 | 5297 |
| 7 | 25686 |
| 8 | 90953 |
| 9 | 315516 |
| 10 | 1294379 |
| 11 | 7743358 |
| 12 | 54991121 |
| 13 | 364542120 |
| 14 | 2515329959 |
| 15 | 16440340258 |