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) |
|---|---|
| 3 | 197 |
| 4 | 2766 |
| 5 | 60142 |
| 6 | 1921115 |
| 7 | 84779781 |
| 8 | 4939361970 |
| 9 | 367260392738 |
| 10 | 33943163219867 |
| 11 | 3817771391967469 |
| 12 | 513555324752795822 |
| 13 | 81424493891629268382 |
| 14 | 15029177059618712556883 |
| 15 | 3195217968081609415815677 |
| 16 | 775224832686819672474135234 |
| 17 | 212905295555773231486108386402 |