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 | -19 |
| 2 | 152 |
| 3 | -627 |
| 4 | 1140 |
| 5 | 988 |
| 6 | -9063 |
| 7 | 14212 |
| 8 | 7410 |
| 9 | -44270 |
| 10 | 22781 |
| 11 | 38114 |
| 12 | 36176 |
| 13 | -137256 |
| 14 | -154850 |
| 15 | 480605 |
| 16 | -46493 |
| 17 | -316065 |
| 18 | -153406 |
| 19 | -254525 |
| 20 | 1156948 |
| 21 | -184927 |
| 22 | 88483 |
| 23 | -1051042 |
| 24 | -2381650 |
| 25 | 3838874 |
| 26 | 1417039 |
| 27 | -542146 |