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 | 223 |
| 2 | 227 |
| 3 | 229 |
| 4 | 1223 |
| 5 | 1229 |
| 6 | 2027 |
| 7 | 2029 |
| 8 | 2129 |
| 9 | 2203 |
| 10 | 2207 |
| 11 | 2213 |
| 12 | 2237 |
| 13 | 2239 |
| 14 | 2243 |
| 15 | 2251 |
| 16 | 2267 |
| 17 | 2269 |
| 18 | 2273 |
| 19 | 2281 |
| 20 | 2287 |
| 21 | 2293 |
| 22 | 2297 |
| 23 | 2423 |
| 24 | 2521 |
| 25 | 2621 |
| 26 | 2729 |
| 27 | 2927 |
| 28 | 3221 |
| 29 | 3229 |
| 30 | 4229 |
| 31 | 5227 |
| 32 | 6221 |
| 33 | 6229 |
| 34 | 7229 |
| 35 | 8221 |
| 36 | 9221 |
| 37 | 9227 |
| 38 | 10223 |
| 39 | 12203 |
| 40 | 12211 |
| 41 | 12239 |
| 42 | 12241 |
| 43 | 12251 |
| 44 | 12253 |