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 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 10 |
| 7 | 12 |
| 8 | 16 |
| 9 | 21 |
| 10 | 29 |
| 11 | 32 |
| 12 | 22 |
| 13 | -2 |
| 14 | -39 |
| 15 | -67 |
| 16 | -48 |
| 17 | 64 |
| 18 | 277 |
| 19 | 576 |
| 20 | 848 |
| 21 | 981 |
| 22 | 771 |
| 23 | 40 |
| 24 | -1498 |
| 25 | -4276 |
| 26 | -8745 |
| 27 | -15062 |
| 28 | -21702 |