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) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 17 |
| 3 | 145 |
| 4 | 153 |
| 5 | 289 |
| 6 | 2457 |
| 7 | 2465 |
| 8 | 2601 |
| 9 | 4913 |
| 10 | 41761 |
| 11 | 41769 |
| 12 | 41905 |
| 13 | 44217 |
| 14 | 83521 |
| 15 | 709929 |
| 16 | 709937 |
| 17 | 710073 |
| 18 | 712385 |
| 19 | 751689 |
| 20 | 1419857 |
| 21 | 12068785 |
| 22 | 12068793 |
| 23 | 12068929 |
| 24 | 12071241 |
| 25 | 12110545 |
| 26 | 12778713 |
| 27 | 24137569 |
| 28 | 205169337 |
| 29 | 205169345 |
| 30 | 205169481 |
| 31 | 205171793 |
| 32 | 205211097 |
| 33 | 205879265 |
| 34 | 217238121 |
| 35 | 410338673 |