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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 97 |
| 6 | 99 |
| 7 | 101 |
| 8 | 403 |
| 9 | 405 |
| 10 | 407 |
| 11 | 517 |
| 12 | 519 |
| 13 | 521 |
| 14 | 787 |
| 15 | 789 |
| 16 | 791 |
| 17 | 907 |
| 18 | 909 |
| 19 | 911 |
| 20 | 1117 |
| 21 | 1119 |
| 22 | 1121 |
| 23 | 1147 |
| 24 | 1149 |
| 25 | 1151 |
| 26 | 1267 |
| 27 | 1269 |
| 28 | 1271 |
| 29 | 1357 |
| 30 | 1359 |
| 31 | 1361 |
| 32 | 3247 |
| 33 | 3249 |
| 34 | 3251 |
| 35 | 4207 |
| 36 | 4209 |
| 37 | 4211 |