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 | 11 |
| 3 | 15 |
| 4 | 27 |
| 5 | 35 |
| 6 | 47 |
| 7 | 51 |
| 8 | 63 |
| 9 | 75 |
| 10 | 83 |
| 11 | 99 |
| 12 | 107 |
| 13 | 111 |
| 14 | 123 |
| 15 | 143 |
| 16 | 147 |
| 17 | 155 |
| 18 | 171 |
| 19 | 191 |
| 20 | 195 |
| 21 | 207 |
| 22 | 227 |
| 23 | 243 |
| 24 | 251 |
| 25 | 267 |
| 26 | 291 |
| 27 | 299 |
| 28 | 303 |
| 29 | 315 |