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 | 321 |
| 2 | 2641 |
| 3 | 10321 |
| 4 | 28401 |
| 5 | 63601 |
| 6 | 124321 |
| 7 | 220641 |
| 8 | 364321 |
| 9 | 568801 |
| 10 | 849201 |
| 11 | 1222321 |
| 12 | 1706641 |
| 13 | 2322321 |
| 14 | 3091201 |
| 15 | 4036801 |
| 16 | 5184321 |
| 17 | 6560641 |
| 18 | 8194321 |
| 19 | 10115601 |
| 20 | 12356401 |
| 21 | 14950321 |
| 22 | 17932641 |
| 23 | 21340321 |
| 24 | 25212001 |
| 25 | 29588001 |