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 | 200 |
| 3 | 1936 |
| 4 | 9884 |
| 5 | 33736 |
| 6 | 90604 |
| 7 | 207184 |
| 8 | 421620 |
| 9 | 785504 |
| 10 | 1366876 |
| 11 | 2251016 |
| 12 | 3543320 |
| 13 | 5371856 |
| 14 | 7888384 |
| 15 | 11270788 |
| 16 | 15726488 |
| 17 | 21492408 |
| 18 | 28838244 |
| 19 | 38069472 |
| 20 | 49527504 |
| 21 | 63592532 |
| 22 | 80687412 |
| 23 | 101276728 |
| 24 | 125870512 |
| 25 | 155027684 |
| 26 | 189355324 |