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 | 2401 |
| 2 | 279841 |
| 3 | 15752961 |
| 4 | 20151121 |
| 5 | 35153041 |
| 6 | 43046721 |
| 7 | 62742241 |
| 8 | 68574961 |
| 9 | 88529281 |
| 10 | 200533921 |
| 11 | 260144641 |
| 12 | 547981281 |
| 13 | 671898241 |
| 14 | 2385443281 |
| 15 | 2655237841 |
| 16 | 2750058481 |
| 17 | 2847396321 |
| 18 | 3262808641 |
| 19 | 3722098081 |
| 20 | 4640470641 |
| 21 | 5887339441 |
| 22 | 6414247921 |
| 23 | 8428892481 |
| 24 | 8882874001 |