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 | 10 |
| 3 | 15 |
| 4 | 27 |
| 5 | 42 |
| 6 | 60 |
| 7 | 72 |
| 8 | 78 |
| 9 | 174 |
| 10 | 204 |
| 11 | 222 |
| 12 | 378 |
| 13 | 438 |
| 14 | 663 |
| 15 | 1352 |
| 16 | 1446 |
| 17 | 2022 |
| 18 | 2526 |
| 19 | 2598 |
| 20 | 3462 |
| 21 | 4038 |
| 22 | 4542 |
| 23 | 6054 |
| 24 | 12102 |
| 25 | 22182 |
| 26 | 30336 |
| 27 | 35432 |
| 28 | 39318 |
| 29 | 44358 |
| 30 | 55446 |
| 31 | 72582 |
| 32 | 90726 |
| 33 | 99798 |
| 34 | 110886 |
| 35 | 120966 |
| 36 | 157254 |
| 37 | 181446 |
| 38 | 235878 |
| 39 | 288294 |
| 40 | 332646 |
| 41 | 399174 |
| 42 | 432438 |
| 43 | 665286 |