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 | 263 |
| 2 | 821 |
| 3 | 953 |
| 4 | 1049 |
| 5 | 1597 |
| 6 | 2143 |
| 7 | 2273 |
| 8 | 2677 |
| 9 | 2683 |
| 10 | 2699 |
| 11 | 2749 |
| 12 | 3251 |
| 13 | 3389 |
| 14 | 3709 |
| 15 | 3739 |
| 16 | 3761 |
| 17 | 3929 |
| 18 | 4013 |
| 19 | 4243 |
| 20 | 4409 |
| 21 | 4519 |
| 22 | 4603 |
| 23 | 4621 |
| 24 | 4639 |
| 25 | 4657 |
| 26 | 4943 |
| 27 | 5009 |
| 28 | 5387 |
| 29 | 5449 |
| 30 | 5483 |
| 31 | 5783 |
| 32 | 6173 |
| 33 | 6311 |
| 34 | 6373 |
| 35 | 6703 |
| 36 | 6737 |
| 37 | 6869 |
| 38 | 6983 |
| 39 | 7517 |
| 40 | 7603 |
| 41 | 7717 |
| 42 | 7993 |