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 | 23 |
| 3 | 526 |
| 4 | 536 |
| 5 | 1802 |
| 6 | 4735 |
| 7 | 17191 |
| 8 | 38524 |
| 9 | 235652 |
| 10 | 36235483 |
| 11 | 1086331411 |
| 12 | 5316125655 |
| 13 | 7202194357 |
| 14 | 49294058315 |
| 15 | 327040088933 |