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 | 7 |
| 3 | 23 |
| 4 | 30 |
| 5 | 94 |
| 6 | 219 |
| 7 | 279 |
| 8 | 773 |
| 9 | 1856 |
| 10 | 3724 |
| 11 | 6999 |
| 12 | 7000 |
| 13 | 19205 |
| 14 | 184163 |
| 15 | 280103 |
| 16 | 849876 |
| 17 | 1870722 |
| 18 | 3570761 |
| 19 | 4114341 |
| 20 | 11271072 |
| 21 | 55282774 |
| 22 | 68256040 |
| 23 | 68256041 |
| 24 | 104011359 |
| 25 | 1009322491 |
| 26 | 1311699253 |
| 27 | 7889803997 |