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 | 37 |
| 2 | 59 |
| 3 | 1721 |
| 4 | 2731 |
| 5 | 3539 |
| 6 | 3943 |
| 7 | 4549 |
| 8 | 4751 |
| 9 | 6367 |
| 10 | 6569 |
| 11 | 8387 |
| 12 | 9397 |
| 13 | 99103 |
| 14 | 113117 |
| 15 | 123127 |
| 16 | 147151 |
| 17 | 149153 |
| 18 | 173177 |
| 19 | 185189 |
| 20 | 203207 |
| 21 | 209213 |
| 22 | 213217 |
| 23 | 219223 |
| 24 | 227231 |
| 25 | 239243 |
| 26 | 249253 |
| 27 | 255259 |
| 28 | 263267 |
| 29 | 267271 |
| 30 | 285289 |
| 31 | 287291 |