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) |
|---|---|
| 0 | 1 |
| 1 | 65 |
| 2 | 793 |
| 3 | 4825 |
| 4 | 19721 |
| 5 | 62281 |
| 6 | 164305 |
| 7 | 379793 |
| 8 | 793585 |
| 9 | 1531441 |
| 10 | 2771561 |
| 11 | 4757545 |
| 12 | 7812793 |
| 13 | 12356345 |
| 14 | 18920161 |
| 15 | 28167841 |
| 16 | 40914785 |
| 17 | 58149793 |
| 18 | 81058105 |
| 19 | 111045881 |
| 20 | 149766121 |
| 21 | 199146025 |
| 22 | 261415793 |
| 23 | 339138865 |
| 24 | 435243601 |
| 25 | 553056401 |
| 26 | 696336265 |
| 27 | 869310793 |
| 28 | 1076713625 |
| 29 | 1323823321 |