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 | 0 |
| 2 | 700 |
| 3 | 12440 |
| 4 | 96884 |
| 5 | 438968 |
| 6 | 1504820 |
| 7 | 4141212 |
| 8 | 9922424 |
| 9 | 21253088 |
| 10 | 41894660 |
| 11 | 76920336 |
| 12 | 133925952 |
| 13 | 222142748 |
| 14 | 354645912 |
| 15 | 547265784 |
| 16 | 820450936 |
| 17 | 1198350296 |
| 18 | 1712627752 |
| 19 | 2397846536 |
| 20 | 3298959016 |
| 21 | 4465613072 |
| 22 | 5958544292 |
| 23 | 7844423744 |