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 | 7 |
| 2 | 3 |
| 3 | 13 |
| 4 | 241 |
| 5 | 97 |
| 6 | 673 |
| 7 | 193 |
| 8 | 22253377 |
| 9 | 18446744069414584321 |
| 10 | 769 |
| 11 | 442499826945303593556473164314770689 |
| 12 | 349621839326921795694385454593 |
| 13 | 331192380488114152600457428497953408512758882817 |
| 14 | 212780015855109121 |