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 | 81 |
| 2 | 1681 |
| 3 | 3481 |
| 4 | 5041 |
| 5 | 7921 |
| 6 | 17161 |
| 7 | 27889 |
| 8 | 29929 |
| 9 | 83521 |
| 10 | 146689 |
| 11 | 279841 |
| 12 | 491401 |
| 13 | 552049 |
| 14 | 579121 |
| 15 | 635209 |
| 16 | 683929 |
| 17 | 703921 |
| 18 | 707281 |
| 19 | 829921 |
| 20 | 1190281 |
| 21 | 1203409 |
| 22 | 1352569 |
| 23 | 1481089 |
| 24 | 1885129 |
| 25 | 2036329 |
| 26 | 2211169 |
| 27 | 2430481 |
| 28 | 2505889 |
| 29 | 3279721 |
| 30 | 3411409 |
| 31 | 3523129 |
| 32 | 3568321 |
| 33 | 3728761 |