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) |
|---|---|
| 1 | 1 |
| 2 | 16 |
| 3 | -156 |
| 4 | 256 |
| 5 | 870 |
| 6 | -2496 |
| 7 | -952 |
| 8 | 4096 |
| 9 | 4653 |
| 10 | 13920 |
| 11 | -56148 |
| 12 | -39936 |
| 13 | 178094 |
| 14 | -15232 |
| 15 | -135720 |
| 16 | 65536 |
| 17 | -247662 |
| 18 | 74448 |
| 19 | 315380 |
| 20 | 222720 |
| 21 | 148512 |
| 22 | -898368 |
| 23 | 204504 |
| 24 | -638976 |
| 25 | -1196225 |
| 26 | 2849504 |
| 27 | 2344680 |
| 28 | -243712 |
| 29 | -3840450 |
| 30 | -2171520 |
| 31 | -1309408 |
| 32 | 1048576 |
| 33 | 8759088 |
| 34 | -3962592 |
| 35 | -828240 |
| 36 | 1191168 |
| 37 | 4307078 |