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) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 66 |
| 3 | 276 |
| 4 | 900 |
| 5 | 2451 |
| 6 | 5831 |
| 7 | 12496 |
| 8 | 24651 |
| 9 | 45475 |
| 10 | 79376 |
| 11 | 132276 |
| 12 | 211926 |
| 13 | 328251 |
| 14 | 493725 |
| 15 | 723776 |
| 16 | 1037221 |
| 17 | 1456731 |
| 18 | 2009326 |
| 19 | 2726900 |
| 20 | 3646776 |
| 21 | 4812291 |
| 22 | 6273411 |
| 23 | 8087376 |
| 24 | 10319375 |
| 25 | 13043251 |
| 26 | 16342236 |
| 27 | 20309716 |
| 28 | 25050026 |
| 29 | 30679275 |
| 30 | 37326201 |
| 31 | 45133056 |