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 | 1 |
| 2 | 2 |
| 3 | 13 |
| 4 | 199 |
| 5 | 9364 |
| 6 | 1530843 |
| 7 | 880471142 |
| 8 | 1792473955306 |
| 9 | 13026161682466252 |
| 10 | 341247400399400765678 |
| 11 | 32522568098548115377595264 |
| 12 | 11366712907233351006127136886487 |
| 13 | 14669074325902449468573755897547924182 |