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 | 14 |
| 2 | 84 |
| 3 | 336 |
| 4 | 1050 |
| 5 | 2772 |
| 6 | 6468 |
| 7 | 13728 |
| 8 | 27027 |
| 9 | 50050 |
| 10 | 88088 |
| 11 | 148512 |
| 12 | 241332 |
| 13 | 379848 |
| 14 | 581400 |
| 15 | 868224 |
| 16 | 1268421 |
| 17 | 1817046 |
| 18 | 2557324 |
| 19 | 3542000 |
| 20 | 4834830 |
| 21 | 6512220 |
| 22 | 8665020 |
| 23 | 11400480 |
| 24 | 14844375 |
| 25 | 19143306 |
| 26 | 24467184 |
| 27 | 31011904 |
| 28 | 39002216 |
| 29 | 48694800 |
| 30 | 60381552 |
| 31 | 74393088 |
| 32 | 91102473 |