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 | 13 |
| 3 | 37 |
| 4 | 73 |
| 5 | 1021 |
| 6 | 2917 |
| 7 | 15013 |
| 8 | 49681 |
| 9 | 532801 |
| 10 | 1065601 |
| 11 | 8524807 |
| 12 | 68198461 |
| 13 | 545587687 |
| 14 | 1704961513 |
| 15 | 23869461181 |
| 16 | 288310406533 |