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 | 148 |
| 2 | 4690 |
| 3 | 80819 |
| 4 | 1092281 |
| 5 | 13831334 |
| 6 | 174854516 |
| 7 | 2231009824 |
| 8 | 28645726612 |
| 9 | 368818252942 |
| 10 | 4752723627808 |
| 11 | 61255849072312 |
| 12 | 789494767364269 |
| 13 | 10175118017926314 |
| 14 | 131136401564099516 |
| 15 | 1690070260377561269 |