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 | 21 |
| 3 | 143 |
| 4 | 208 |
| 5 | 314 |
| 6 | 459 |
| 7 | 957 |
| 8 | 1652 |
| 9 | 2685 |
| 10 | 5091 |
| 11 | 20155 |
| 12 | 38180 |
| 13 | 41265 |
| 14 | 45716 |
| 15 | 54722 |
| 16 | 116937 |
| 17 | 161001 |
| 18 | 186794 |
| 19 | 230390 |
| 20 | 274533 |
| 21 | 338547 |
| 22 | 416577 |
| 23 | 430137 |
| 24 | 495187 |