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 | 5 |
| 3 | 7 |
| 4 | 11 |
| 5 | 29 |
| 6 | 41 |
| 7 | 47 |
| 8 | 73 |
| 9 | 107 |
| 10 | 137 |
| 11 | 167 |
| 12 | 173 |
| 13 | 193 |
| 14 | 211 |
| 15 | 263 |
| 16 | 269 |
| 17 | 277 |
| 18 | 307 |
| 19 | 421 |
| 20 | 433 |
| 21 | 509 |
| 22 | 601 |
| 23 | 607 |
| 24 | 643 |
| 25 | 647 |
| 26 | 683 |
| 27 | 733 |
| 28 | 739 |
| 29 | 751 |
| 30 | 797 |
| 31 | 809 |
| 32 | 821 |
| 33 | 853 |
| 34 | 857 |
| 35 | 863 |
| 36 | 883 |
| 37 | 907 |
| 38 | 911 |
| 39 | 937 |
| 40 | 977 |
| 41 | 1031 |
| 42 | 1069 |
| 43 | 1229 |
| 44 | 1231 |
| 45 | 1321 |
| 46 | 1367 |
| 47 | 1373 |
| 48 | 1447 |
| 49 | 1523 |
| 50 | 1553 |
| 51 | 1567 |