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 | -126 |
| 4 | -117 |
| 5 | 988 |
| 6 | -1377 |
| 7 | -1157 |
| 8 | 5382 |
| 9 | -4419 |
| 10 | -4212 |
| 11 | 12519 |
| 12 | -11179 |
| 13 | -5058 |
| 14 | 27378 |
| 15 | -23005 |
| 16 | -16488 |
| 17 | 44343 |
| 18 | -30249 |
| 19 | -18513 |
| 20 | 73710 |
| 21 | -56259 |
| 22 | -38741 |
| 23 | 93483 |
| 24 | -69570 |
| 25 | -23778 |
| 26 | 137266 |
| 27 | -90396 |
| 28 | -74079 |
| 29 | 140292 |
| 30 | -108621 |
| 31 | -39249 |
| 32 | 222624 |
| 33 | -145710 |
| 34 | -99234 |