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 | 0 |
| 2 | 2 |
| 3 | 11 |
| 4 | 25 |
| 5 | 50 |
| 6 | 76 |
| 7 | 117 |
| 8 | 161 |
| 9 | 216 |
| 10 | 276 |
| 11 | 352 |
| 12 | 422 |
| 13 | 516 |
| 14 | 606 |
| 15 | 720 |
| 16 | 826 |
| 17 | 949 |
| 18 | 1079 |
| 19 | 1222 |
| 20 | 1367 |
| 21 | 1534 |