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 | 5 |
| 3 | 11 |
| 4 | 17 |
| 5 | 29 |
| 6 | 41 |
| 7 | 89 |
| 8 | 101 |
| 9 | 461 |
| 10 | 521 |
| 11 | 761 |
| 12 | 941 |
| 13 | 1091 |
| 14 | 1361 |
| 15 | 1889 |
| 16 | 2141 |
| 17 | 3449 |
| 18 | 4289 |
| 19 | 5381 |
| 20 | 5561 |
| 21 | 10709 |
| 22 | 15461 |
| 23 | 23201 |
| 24 | 59309 |
| 25 | 70769 |
| 26 | 134741 |
| 27 | 174929 |
| 28 | 329969 |
| 29 | 493349 |