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 | 2 |
| 3 | 4 |
| 4 | 44 |
| 5 | 82 |
| 6 | 236 |
| 7 | 25433 |
| 8 | 177764 |
| 9 | 219244 |
| 10 | 86150213 |
| 11 | 107218402 |
| 12 | 1260236441 |
| 13 | 12856300141 |
| 14 | 447650116364 |
| 15 | 657175627369 |
| 16 | 14543842704596 |
| 17 | 125035120614917 |