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 | 413 |
| 2 | 531 |
| 3 | 8673 |
| 4 | 11269 |
| 5 | 426511 |
| 6 | 554187 |
| 7 | 9192849 |
| 8 | 11944727 |
| 9 | 452101247 |
| 10 | 587437689 |
| 11 | 9744411267 |
| 12 | 12661399351 |
| 13 | 479226895309 |
| 14 | 622683396153 |
| 15 | 10329066750171 |
| 16 | 13421071367333 |
| 17 | 507980056926293 |
| 18 | 660043812484491 |
| 19 | 10948801010769993 |
| 20 | 14226322987973629 |
| 21 | 538458381114975271 |