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 | 5 |
| 2 | 37 |
| 3 | 405 |
| 4 | 2225 |
| 5 | 11641 |
| 6 | 35677 |
| 7 | 114409 |
| 8 | 295701 |
| 9 | 718469 |
| 10 | 1475709 |
| 11 | 3093025 |
| 12 | 5771929 |
| 13 | 10895273 |
| 14 | 18785841 |
| 15 | 31414269 |
| 16 | 50274501 |
| 17 | 81288641 |
| 18 | 124066161 |
| 19 | 190860537 |
| 20 | 282399889 |
| 21 | 411505049 |
| 22 | 580614301 |
| 23 | 824814797 |
| 24 | 1138709849 |
| 25 | 1570665877 |
| 26 | 2115178249 |
| 27 | 2833746309 |
| 28 | 3732420861 |
| 29 | 4937226173 |