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 | 84 |
| 2 | 7056 |
| 3 | 282372 |
| 4 | 6425876 |
| 5 | 95808564 |
| 6 | 1038484760 |
| 7 | 8857798353 |
| 8 | 63080505999 |
| 9 | 391482575333 |
| 10 | 2182020084219 |
| 11 | 11154302333669 |
| 12 | 53070835890575 |
| 13 | 237508827855216 |
| 14 | 1007614860280386 |
| 15 | 4076458517196412 |
| 16 | 15801076345180104 |
| 17 | 58906922067133096 |
| 18 | 211885437690782790 |
| 19 | 737309735186245955 |