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 | 4 |
| 2 | 9 |
| 3 | 15 |
| 4 | 21 |
| 5 | 33 |
| 6 | 38 |
| 7 | 58 |
| 8 | 65 |
| 9 | 86 |
| 10 | 106 |
| 11 | 121 |
| 12 | 129 |
| 13 | 265 |
| 14 | 979 |
| 15 | 1079 |
| 16 | 2279 |
| 17 | 7985 |
| 18 | 8491 |
| 19 | 14019 |
| 20 | 15397 |
| 21 | 37606 |
| 22 | 61289 |
| 23 | 71845 |
| 24 | 117013 |
| 25 | 127401 |
| 26 | 196763 |
| 27 | 221905 |
| 28 | 244414 |
| 29 | 265358 |
| 30 | 290111 |
| 31 | 466319 |
| 32 | 555469 |
| 33 | 1065241 |
| 34 | 1672598 |
| 35 | 4276487 |
| 36 | 4712791 |
| 37 | 5266246 |
| 38 | 8178897 |