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 | 10 |
| 2 | 15 |
| 3 | 21 |
| 4 | 517 |
| 5 | 529 |
| 6 | 671 |
| 7 | 1513 |
| 8 | 6241 |
| 9 | 15251 |
| 10 | 23129 |
| 11 | 27161 |
| 12 | 53297 |
| 13 | 59701 |
| 14 | 79091 |
| 15 | 104977 |
| 16 | 299911 |
| 17 | 559411 |
| 18 | 575051 |
| 19 | 597557 |
| 20 | 1560101 |
| 21 | 2178727 |
| 22 | 2273641 |
| 23 | 2390393 |
| 24 | 2966429 |
| 25 | 5354893 |
| 26 | 5429329 |
| 27 | 5435761 |
| 28 | 5613197 |
| 29 | 5664721 |
| 30 | 5988449 |
| 31 | 6218521 |