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 | 35 |
| 2 | 1225 |
| 3 | 2233 |
| 4 | 11306 |
| 5 | 39050 |
| 6 | 89417 |
| 7 | 268275 |
| 8 | 667760 |
| 9 | 1691526 |
| 10 | 4324858 |
| 11 | 10910668 |
| 12 | 28038606 |
| 13 | 71784122 |
| 14 | 186198243 |
| 15 | 482642047 |
| 16 | 1259170885 |
| 17 | 3300248079 |
| 18 | 8616047712 |
| 19 | 22660486326 |
| 20 | 59449698479 |
| 21 | 156019165327 |
| 22 | 410863919802 |
| 23 | 1077513243234 |