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 | 1 |
| 2 | -2 |
| 3 | 2 |
| 4 | -2 |
| 5 | 5 |
| 6 | -9 |
| 7 | 13 |
| 8 | -20 |
| 9 | 34 |
| 10 | -56 |
| 11 | 89 |
| 12 | -143 |
| 13 | 233 |
| 14 | -378 |
| 15 | 610 |
| 16 | -986 |
| 17 | 1597 |
| 18 | -2585 |
| 19 | 4181 |
| 20 | -6764 |
| 21 | 10946 |
| 22 | -17712 |
| 23 | 28657 |
| 24 | -46367 |
| 25 | 75025 |
| 26 | -121394 |
| 27 | 196418 |
| 28 | -317810 |
| 29 | 514229 |
| 30 | -832041 |
| 31 | 1346269 |
| 32 | -2178308 |
| 33 | 3524578 |
| 34 | -5702888 |