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 | 4722613 |
| 2 | 7820866 |
| 3 | 19921876 |
| 4 | 33359983 |
| 5 | 34287075 |
| 6 | 37855734 |
| 7 | 46663520 |
| 8 | 46663521 |
| 9 | 46663522 |
| 10 | 79749698 |
| 11 | 118999021 |
| 12 | 142570810 |
| 13 | 152776258 |
| 14 | 175699219 |
| 15 | 179246855 |
| 16 | 185196729 |
| 17 | 206426208 |
| 18 | 239798471 |
| 19 | 239798472 |
| 20 | 250968396 |
| 21 | 261513905 |
| 22 | 269167637 |
| 23 | 269671298 |
| 24 | 271471279 |
| 25 | 278530910 |