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 | 3 |
| 3 | 8 |
| 4 | 20 |
| 5 | 45 |
| 6 | 91 |
| 7 | 168 |
| 8 | 288 |
| 9 | 465 |
| 10 | 715 |
| 11 | 1056 |
| 12 | 1508 |
| 13 | 2093 |
| 14 | 2835 |
| 15 | 3760 |
| 16 | 4896 |
| 17 | 6273 |
| 18 | 7923 |
| 19 | 9880 |
| 20 | 12180 |
| 21 | 14861 |
| 22 | 17963 |
| 23 | 21528 |
| 24 | 25600 |
| 25 | 30225 |
| 26 | 35451 |
| 27 | 41328 |
| 28 | 47908 |
| 29 | 55245 |
| 30 | 63395 |
| 31 | 72416 |
| 32 | 82368 |
| 33 | 93313 |
| 34 | 105315 |
| 35 | 118440 |
| 36 | 132756 |
| 37 | 148333 |
| 38 | 165243 |
| 39 | 183560 |
| 40 | 203360 |
| 41 | 224721 |
| 42 | 247723 |
| 43 | 272448 |