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 | 1 |
| 2 | 21 |
| 3 | 273 |
| 4 | 4161 |
| 5 | 22517 |
| 6 | 28347 |
| 7 | 65793 |
| 8 | 69905 |
| 9 | 81913 |
| 10 | 87381 |
| 11 | 106483 |
| 12 | 109483 |
| 13 | 121143 |
| 14 | 292721 |
| 15 | 299593 |
| 16 | 317273 |
| 17 | 319449 |
| 18 | 350933 |
| 19 | 354101 |
| 20 | 368589 |
| 21 | 378653 |
| 22 | 421811 |
| 23 | 470951 |
| 24 | 479831 |
| 25 | 1049601 |
| 26 | 1135953 |
| 27 | 1171313 |
| 28 | 1172721 |
| 29 | 1208009 |
| 30 | 1257113 |
| 31 | 1269593 |
| 32 | 1295481 |
| 33 | 1332549 |
| 34 | 1371877 |