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 | 3 |
| 3 | 17 |
| 4 | 27 |
| 5 | 545 |
| 6 | 563 |
| 7 | 867 |
| 8 | 1395 |
| 9 | 1433 |
| 10 | 1577 |
| 11 | 2187 |
| 12 | 580793 |
| 13 | 585363 |
| 14 | 592433 |
| 15 | 593507 |
| 16 | 620195 |
| 17 | 624945 |
| 18 | 632267 |
| 19 | 633377 |
| 20 | 891075 |
| 21 | 921153 |
| 22 | 950907 |
| 23 | 1481427 |
| 24 | 1489217 |
| 25 | 1500795 |
| 26 | 1502513 |
| 27 | 1624913 |
| 28 | 1649195 |