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 | 89 |
| 2 | 359 |
| 3 | 809 |
| 4 | 1439 |
| 5 | 4409 |
| 6 | 8999 |
| 7 | 10889 |
| 8 | 12959 |
| 9 | 20249 |
| 10 | 23039 |
| 11 | 35999 |
| 12 | 47609 |
| 13 | 51839 |
| 14 | 56249 |
| 15 | 65609 |
| 16 | 75689 |
| 17 | 98009 |
| 18 | 116639 |
| 19 | 123209 |
| 20 | 129959 |
| 21 | 136889 |
| 22 | 143999 |
| 23 | 151289 |
| 24 | 158759 |
| 25 | 166409 |
| 26 | 234089 |
| 27 | 272249 |
| 28 | 282239 |
| 29 | 302759 |
| 30 | 313289 |
| 31 | 334889 |
| 32 | 404009 |
| 33 | 416159 |