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 | 5 |
| 2 | 30 |
| 3 | 188 |
| 4 | 1201 |
| 5 | 7756 |
| 6 | 50439 |
| 7 | 329625 |
| 8 | 2161974 |
| 9 | 14220038 |
| 10 | 93740152 |
| 11 | 619083041 |
| 12 | 4094863900 |
| 13 | 27120465023 |
| 14 | 179822255181 |