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 | 4 |
| 2 | 11 |
| 3 | 25 |
| 4 | 329 |
| 5 | 3383 |
| 6 | 4343 |
| 7 | 5561 |
| 8 | 6623 |
| 9 | 12773 |
| 10 | 17267 |
| 11 | 21479 |
| 12 | 57721 |
| 13 | 129383 |
| 14 | 136259 |
| 15 | 142943 |
| 16 | 172793 |
| 17 | 256631 |
| 18 | 292571 |
| 19 | 364823 |
| 20 | 413663 |
| 21 | 413927 |
| 22 | 619337 |
| 23 | 653291 |
| 24 | 1215659 |
| 25 | 1218863 |
| 26 | 1268951 |
| 27 | 1276931 |
| 28 | 1483751 |
| 29 | 1655219 |
| 30 | 1892327 |
| 31 | 2952731 |
| 32 | 4158719 |
| 33 | 4973531 |
| 34 | 5418671 |
| 35 | 6377663 |