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 | 10 |
| 3 | -2 |
| 4 | 100 |
| 5 | -30 |
| 6 | 2 |
| 7 | 1000 |
| 8 | -400 |
| 9 | 50 |
| 10 | -2 |
| 11 | 10000 |
| 12 | -5000 |
| 13 | 900 |
| 14 | -70 |
| 15 | 2 |
| 16 | 100000 |
| 17 | -60000 |
| 18 | 14000 |
| 19 | -1600 |
| 20 | 90 |
| 21 | -2 |