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 | 60 |
| 2 | 4620 |
| 3 | 2024 |
| 4 | 5984 |
| 5 | 11480 |
| 6 | 22960 |
| 7 | 41580 |
| 8 | 8096 |
| 9 | 45920 |
| 10 | 521640 |
| 11 | 226884 |
| 12 | 392920 |
| 13 | 438944 |
| 14 | 803320 |
| 15 | 6725544 |
| 16 | 207900 |
| 17 | 37966500 |
| 18 | 1544620 |
| 19 | 6846840 |
| 20 | 2295200 |
| 21 | 2785484 |
| 22 | 9009000 |
| 23 | 4016600 |
| 24 | 188375200 |
| 25 | 3383500 |
| 26 | 149240 |
| 27 | 5738000 |
| 28 | 875124 |
| 29 | 12013456 |
| 30 | 8848840 |