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 | 23 |
| 3 | 31 |
| 4 | 137 |
| 5 | 191 |
| 6 | 239 |
| 7 | 277 |
| 8 | 359 |
| 9 | 431 |
| 10 | 439 |
| 11 | 683 |
| 12 | 719 |
| 13 | 743 |
| 14 | 911 |
| 15 | 997 |
| 16 | 1031 |
| 17 | 1061 |
| 18 | 1103 |
| 19 | 1109 |
| 20 | 1223 |
| 21 | 1279 |
| 22 | 1423 |
| 23 | 1439 |
| 24 | 1481 |
| 25 | 1511 |
| 26 | 1559 |
| 27 | 1583 |
| 28 | 1597 |
| 29 | 1733 |
| 30 | 1873 |
| 31 | 2017 |
| 32 | 2039 |
| 33 | 2063 |
| 34 | 2351 |
| 35 | 2399 |
| 36 | 2411 |
| 37 | 2543 |
| 38 | 2683 |
| 39 | 2897 |
| 40 | 2903 |
| 41 | 3023 |
| 42 | 3347 |
| 43 | 3359 |
| 44 | 3457 |
| 45 | 3517 |
| 46 | 3607 |
| 47 | 3623 |
| 48 | 3793 |
| 49 | 3797 |