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 | 91 |
| 2 | 77 |
| 3 | 5882353 |
| 4 | 52631579 |
| 5 | 4347826087 |
| 6 | 3448275862069 |
| 7 | 2127659574468085106383 |
| 8 | 20408163265306122449 |
| 9 | 1694915254237288135593220339 |
| 10 | 16393442622950819672131147541 |
| 11 | 137 |
| 12 | 13 |
| 13 | 112359550561797732809 |
| 14 | 11 |
| 15 | 10309278350515463917525773195876288659793814433 |