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 | 23 |
| 2 | 47 |
| 3 | 191 |
| 4 | 239 |
| 5 | 263 |
| 6 | 311 |
| 7 | 359 |
| 8 | 479 |
| 9 | 503 |
| 10 | 647 |
| 11 | 719 |
| 12 | 1031 |
| 13 | 1103 |
| 14 | 1151 |
| 15 | 1223 |
| 16 | 1487 |
| 17 | 1559 |
| 18 | 1583 |
| 19 | 1607 |
| 20 | 1847 |
| 21 | 1871 |
| 22 | 2039 |
| 23 | 2063 |
| 24 | 2087 |
| 25 | 2399 |
| 26 | 2543 |
| 27 | 2591 |
| 28 | 2927 |
| 29 | 2999 |
| 30 | 3407 |
| 31 | 3671 |
| 32 | 3767 |
| 33 | 3863 |
| 34 | 3911 |
| 35 | 4007 |
| 36 | 4127 |
| 37 | 4463 |
| 38 | 4583 |
| 39 | 4679 |
| 40 | 4751 |
| 41 | 4799 |
| 42 | 4871 |