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 | 216912 |
| 2 | 18577404 |
| 3 | 873945739 |
| 4 | 26787273856 |
| 5 | 594938582014 |
| 6 | 10280556043804 |
| 7 | 145329837643171 |
| 8 | 1743692215971208 |
| 9 | 18257820090771490 |
| 10 | 170475350875241504 |
| 11 | 1443843489205389919 |
| 12 | 11245777833263175252 |
| 13 | 81459269805049215890 |