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 | 7 |
| 2 | 13 |
| 3 | 31 |
| 4 | 43 |
| 5 | 61 |
| 6 | 103 |
| 7 | 109 |
| 8 | 199 |
| 9 | 271 |
| 10 | 367 |
| 11 | 409 |
| 12 | 421 |
| 13 | 523 |
| 14 | 541 |
| 15 | 547 |
| 16 | 787 |
| 17 | 823 |
| 18 | 829 |
| 19 | 883 |
| 20 | 1009 |
| 21 | 1033 |
| 22 | 1117 |
| 23 | 1237 |
| 24 | 1291 |
| 25 | 1669 |
| 26 | 1999 |
| 27 | 2131 |
| 28 | 2161 |
| 29 | 2203 |
| 30 | 2269 |
| 31 | 2437 |
| 32 | 2503 |
| 33 | 2593 |
| 34 | 2671 |
| 35 | 2857 |
| 36 | 3049 |
| 37 | 3253 |
| 38 | 3271 |
| 39 | 3361 |
| 40 | 3559 |
| 41 | 3583 |
| 42 | 3769 |
| 43 | 3823 |
| 44 | 4003 |
| 45 | 4201 |
| 46 | 4339 |
| 47 | 4357 |