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) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 19 |
| 3 | 25 |
| 4 | 57 |
| 5 | 67 |
| 6 | 115 |
| 7 | 129 |
| 8 | 193 |
| 9 | 211 |
| 10 | 291 |
| 11 | 313 |
| 12 | 409 |
| 13 | 435 |
| 14 | 547 |
| 15 | 577 |
| 16 | 705 |
| 17 | 739 |
| 18 | 883 |
| 19 | 921 |
| 20 | 1081 |
| 21 | 1123 |
| 22 | 1299 |
| 23 | 1345 |
| 24 | 1537 |
| 25 | 1587 |
| 26 | 1795 |
| 27 | 1849 |
| 28 | 2073 |
| 29 | 2131 |
| 30 | 2371 |
| 31 | 2433 |
| 32 | 2689 |
| 33 | 2755 |
| 34 | 3027 |
| 35 | 3097 |
| 36 | 3385 |
| 37 | 3459 |
| 38 | 3763 |
| 39 | 3841 |
| 40 | 4161 |
| 41 | 4243 |
| 42 | 4579 |