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 | -13 |
| 2 | 65 |
| 3 | -130 |
| 4 | -65 |
| 5 | 728 |
| 6 | -871 |
| 7 | -715 |
| 8 | 1560 |
| 9 | 845 |
| 10 | 78 |
| 11 | -6513 |
| 12 | 2730 |
| 13 | 8605 |
| 14 | -4355 |
| 15 | 2483 |
| 16 | -13299 |
| 17 | -2275 |
| 18 | 11440 |
| 19 | 10010 |
| 20 | 19734 |
| 21 | -41834 |
| 22 | -11375 |
| 23 | 12870 |
| 24 | -2730 |
| 25 | 14911 |
| 26 | 33201 |
| 27 | 25155 |
| 28 | -70070 |
| 29 | -36595 |
| 30 | -28925 |
| 31 | 64389 |
| 32 | 13650 |
| 33 | 52780 |