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 | 22 |
| 2 | 484 |
| 3 | 9515 |
| 4 | 186004 |
| 5 | 3628696 |
| 6 | 70779056 |
| 7 | 1380511272 |
| 8 | 26926081924 |
| 9 | 525177301935 |
| 10 | 10243271456697 |
| 11 | 199788923564609 |
| 12 | 3896764235253108 |
| 13 | 76004070829222317 |
| 14 | 1482414237420454682 |
| 15 | 28913608801546792225 |
| 16 | 563942758255071088641 |