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 | 2 |
| 2 | 5 |
| 3 | 7 |
| 4 | 257 |
| 5 | 521 |
| 6 | 97 |
| 7 | 911 |
| 8 | 673 |
| 9 | 530713 |
| 10 | 27961 |
| 11 | 58367 |
| 12 | 2227777 |
| 13 | 79301 |
| 14 | 176597 |
| 15 | 142111 |
| 16 | 67280421310721 |
| 17 | 45957792327018709121 |
| 18 | 33388093 |
| 19 | 870542161121 |
| 20 | 4406613081041681 |
| 21 | 22864311556633 |
| 22 | 73194743542229 |
| 23 | 1522029233 |
| 24 | 27250359649 |