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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 18 |
| 4 | 108 |
| 5 | 400 |
| 6 | 1125 |
| 7 | 2646 |
| 8 | 5488 |
| 9 | 10368 |
| 10 | 18225 |
| 11 | 30250 |
| 12 | 47916 |
| 13 | 73008 |
| 14 | 107653 |
| 15 | 154350 |
| 16 | 216000 |
| 17 | 295936 |
| 18 | 397953 |
| 19 | 526338 |
| 20 | 685900 |
| 21 | 882000 |
| 22 | 1120581 |
| 23 | 1408198 |
| 24 | 1752048 |
| 25 | 2160000 |
| 26 | 2640625 |
| 27 | 3203226 |
| 28 | 3857868 |
| 29 | 4615408 |
| 30 | 5487525 |
| 31 | 6486750 |
| 32 | 7626496 |
| 33 | 8921088 |
| 34 | 10385793 |