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 | 9 |
| 3 | 33 |
| 4 | 4884 |
| 5 | 8448 |
| 6 | 9009 |
| 7 | 31313 |
| 8 | 48384 |
| 9 | 52425 |
| 10 | 82928 |
| 11 | 88788 |
| 12 | 489984 |
| 13 | 505505 |
| 14 | 861168 |
| 15 | 5013105 |
| 16 | 8020208 |
| 17 | 48999984 |
| 18 | 88322388 |
| 19 | 801909108 |
| 20 | 902101209 |
| 21 | 3305445033 |
| 22 | 4899999984 |
| 23 | 8807447088 |
| 24 | 35565056553 |
| 25 | 52065656025 |
| 26 | 58129692185 |
| 27 | 80532223508 |
| 28 | 88892229888 |
| 29 | 357468864753 |