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 | 1 |
| 2 | 5 |
| 3 | 9 |
| 4 | 98 |
| 5 | 33 |
| 6 | 4225 |
| 7 | 129 |
| 8 | 72354 |
| 9 | 20196 |
| 10 | 1050625 |
| 11 | 2049 |
| 12 | 2194099186 |
| 13 | 8193 |
| 14 | 268468225 |
| 15 | 1073807361 |
| 16 | 156925970179 |
| 17 | 131073 |
| 18 | 101629064089930 |
| 19 | 524289 |
| 20 | 3657261440572306 |
| 21 | 4398050705409 |
| 22 | 17592194433025 |
| 23 | 8388609 |
| 24 | 4727105427440383342818 |
| 25 | 847322163876 |
| 26 | 4503599761588225 |