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 | 253679 |
| 2 | 1138829 |
| 3 | 58680929 |
| 4 | 90895769 |
| 5 | 124253009 |
| 6 | 269877299 |
| 7 | 392071679 |
| 8 | 613813199 |
| 9 | 1014342209 |
| 10 | 1277981669 |
| 11 | 1413015029 |
| 12 | 1453978679 |
| 13 | 1753585679 |
| 14 | 2919331379 |
| 15 | 3424037189 |
| 16 | 3538972709 |
| 17 | 4025789039 |
| 18 | 4175762009 |
| 19 | 4362439199 |
| 20 | 4843208789 |
| 21 | 5708418869 |
| 22 | 5795508599 |