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 | 13781 |
| 2 | 19141 |
| 3 | 21493 |
| 4 | 50581 |
| 5 | 142453 |
| 6 | 152629 |
| 7 | 253013 |
| 8 | 298693 |
| 9 | 307253 |
| 10 | 346501 |
| 11 | 507781 |
| 12 | 543061 |
| 13 | 845381 |
| 14 | 1079093 |
| 15 | 1273781 |
| 16 | 1354501 |
| 17 | 1386901 |
| 18 | 1492069 |
| 19 | 1546261 |
| 20 | 1661333 |
| 21 | 1665061 |
| 22 | 1841141 |
| 23 | 2192933 |
| 24 | 2208517 |
| 25 | 2436341 |
| 26 | 2453141 |
| 27 | 2545013 |