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) |
|---|---|
| 1 | 108 |
| 2 | 324 |
| 3 | 720 |
| 4 | 1600 |
| 5 | 3000 |
| 6 | 5625 |
| 7 | 9450 |
| 8 | 15876 |
| 9 | 24696 |
| 10 | 38416 |
| 11 | 56448 |
| 12 | 82944 |
| 13 | 116640 |
| 14 | 164025 |
| 15 | 222750 |
| 16 | 302500 |
| 17 | 399300 |
| 18 | 527076 |
| 19 | 679536 |
| 20 | 876096 |
| 21 | 1107288 |
| 22 | 1399489 |
| 23 | 1739010 |
| 24 | 2160900 |
| 25 | 2646000 |
| 26 | 3240000 |
| 27 | 3916800 |
| 28 | 4734976 |
| 29 | 5659776 |
| 30 | 6765201 |
| 31 | 8005878 |