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 | 1 |
| 2 | 15 |
| 3 | 81 |
| 4 | 240 |
| 5 | 625 |
| 6 | 1215 |
| 7 | 2401 |
| 8 | 3840 |
| 9 | 6561 |
| 10 | 9375 |
| 11 | 14641 |
| 12 | 19440 |
| 13 | 28561 |
| 14 | 36015 |
| 15 | 50625 |
| 16 | 61440 |
| 17 | 83521 |
| 18 | 98415 |
| 19 | 130321 |
| 20 | 150000 |
| 21 | 194481 |
| 22 | 219615 |
| 23 | 279841 |
| 24 | 311040 |
| 25 | 390625 |
| 26 | 428415 |
| 27 | 531441 |
| 28 | 576240 |
| 29 | 707281 |
| 30 | 759375 |
| 31 | 923521 |
| 32 | 983040 |
| 33 | 1185921 |
| 34 | 1252815 |
| 35 | 1500625 |
| 36 | 1574640 |
| 37 | 1874161 |
| 38 | 1954815 |