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 | 189 |
| 2 | 1271 |
| 3 | 2125 |
| 4 | 9261 |
| 5 | 63767 |
| 6 | 133907 |
| 7 | 142859 |
| 8 | 161257 |
| 9 | 189209 |
| 10 | 226967 |
| 11 | 368063 |
| 12 | 426373 |
| 13 | 777923 |
| 14 | 801727 |
| 15 | 925101 |
| 16 | 961193 |
| 17 | 1003043 |
| 18 | 4566661 |
| 19 | 5244091 |
| 20 | 5588327 |
| 21 | 6031163 |
| 22 | 6064439 |
| 23 | 8135263 |
| 24 | 8639879 |
| 25 | 10074227 |
| 26 | 10150571 |
| 27 | 11234875 |
| 28 | 12489107 |
| 29 | 16016003 |
| 30 | 19765547 |
| 31 | 22635539 |