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) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | -1 |
| 3 | 100 |
| 4 | -30 |
| 5 | 1 |
| 6 | 1000 |
| 7 | -500 |
| 8 | 50 |
| 9 | -1 |
| 10 | 10000 |
| 11 | -7000 |
| 12 | 1300 |
| 13 | -70 |
| 14 | 1 |
| 15 | 100000 |
| 16 | -90000 |
| 17 | 25000 |
| 18 | -2500 |
| 19 | 90 |
| 20 | -1 |
| 21 | 1000000 |
| 22 | -1100000 |
| 23 | 410000 |
| 24 | -63000 |
| 25 | 4100 |
| 26 | -110 |
| 27 | 1 |
| 28 | 10000000 |
| 29 | -13000000 |
| 30 | 6100000 |
| 31 | -1290000 |
| 32 | 129000 |
| 33 | -6100 |
| 34 | 130 |
| 35 | -1 |