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) |
|---|---|
| 0 | 1 |
| 1 | 7 |
| 2 | 115 |
| 3 | 2371 |
| 4 | 54091 |
| 5 | 1307377 |
| 6 | 32803219 |
| 7 | 844910395 |
| 8 | 22188235867 |
| 9 | 591446519797 |
| 10 | 15953338537885 |
| 11 | 434479441772845 |
| 12 | 11927609772412075 |
| 13 | 329653844941016785 |
| 14 | 9163407745486783435 |
| 15 | 255982736410338609931 |
| 16 | 7181987671728091545787 |