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 | 233 |
| 2 | 12314 |
| 3 | 512681 |
| 4 | 18624423 |
| 5 | 638359663 |
| 6 | 21062625664 |
| 7 | 671706552402 |
| 8 | 20756983300265 |
| 9 | 624562355419649 |
| 10 | 18382517638082006 |
| 11 | 531236200468061769 |
| 12 | 15113072656159194185 |
| 13 | 424027010031462876498 |