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 | -1 |
| 2 | 29 |
| 3 | 239 |
| 4 | 1019 |
| 5 | 3119 |
| 6 | 7769 |
| 7 | 16799 |
| 8 | 32759 |
| 9 | 59039 |
| 10 | 99989 |
| 11 | 161039 |
| 12 | 248819 |
| 13 | 371279 |
| 14 | 537809 |
| 15 | 759359 |
| 16 | 1048559 |
| 17 | 1419839 |
| 18 | 1889549 |
| 19 | 2476079 |
| 20 | 3199979 |
| 21 | 4084079 |
| 22 | 5153609 |
| 23 | 6436319 |
| 24 | 7962599 |
| 25 | 9765599 |
| 26 | 11881349 |
| 27 | 14348879 |
| 28 | 17210339 |
| 29 | 20511119 |
| 30 | 24299969 |
| 31 | 28629119 |
| 32 | 33554399 |
| 33 | 39135359 |
| 34 | 45435389 |