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 | 2 |
| 2 | 3 |
| 3 | 3 |
| 4 | 0 |
| 5 | -8 |
| 6 | -21 |
| 7 | -34 |
| 8 | -34 |
| 9 | 0 |
| 10 | 89 |
| 11 | 233 |
| 12 | 377 |
| 13 | 377 |
| 14 | 0 |
| 15 | -987 |
| 16 | -2584 |
| 17 | -4181 |
| 18 | -4181 |
| 19 | 0 |
| 20 | 10946 |
| 21 | 28657 |
| 22 | 46368 |
| 23 | 46368 |
| 24 | 0 |
| 25 | -121393 |
| 26 | -317811 |
| 27 | -514229 |
| 28 | -514229 |
| 29 | 0 |
| 30 | 1346269 |
| 31 | 3524578 |
| 32 | 5702887 |
| 33 | 5702887 |
| 34 | 0 |
| 35 | -14930352 |
| 36 | -39088169 |
| 37 | -63245986 |
| 38 | -63245986 |