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 | 3 |
| 2 | 7 |
| 3 | 11 |
| 4 | 31 |
| 5 | 47 |
| 6 | 211 |
| 7 | 223 |
| 8 | 229 |
| 9 | 281 |
| 10 | 293 |
| 11 | 2311 |
| 12 | 2347 |
| 13 | 2383 |
| 14 | 2843 |
| 15 | 2879 |
| 16 | 30091 |
| 17 | 30181 |
| 18 | 30211 |
| 19 | 30307 |
| 20 | 30367 |
| 21 | 30427 |
| 22 | 30493 |
| 23 | 30553 |
| 24 | 30643 |
| 25 | 30829 |
| 26 | 30859 |
| 27 | 34871 |
| 28 | 34961 |
| 29 | 35051 |
| 30 | 35117 |
| 31 | 35267 |
| 32 | 35363 |
| 33 | 35393 |
| 34 | 35423 |
| 35 | 510751 |
| 36 | 511711 |
| 37 | 513067 |
| 38 | 513307 |
| 39 | 515143 |
| 40 | 517459 |
| 41 | 518179 |