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 | -8 |
| 3 | 12 |
| 4 | 64 |
| 5 | -210 |
| 6 | -96 |
| 7 | 1016 |
| 8 | -512 |
| 9 | -2043 |
| 10 | 1680 |
| 11 | 1092 |
| 12 | 768 |
| 13 | 1382 |
| 14 | -8128 |
| 15 | -2520 |
| 16 | 4096 |
| 17 | 14706 |
| 18 | 16344 |
| 19 | -39940 |
| 20 | -13440 |
| 21 | 12192 |
| 22 | -8736 |
| 23 | 68712 |
| 24 | -6144 |
| 25 | -34025 |
| 26 | -11056 |
| 27 | -50760 |
| 28 | 65024 |
| 29 | -102570 |
| 30 | 20160 |
| 31 | 227552 |
| 32 | -32768 |
| 33 | 13104 |
| 34 | -117648 |
| 35 | -213360 |
| 36 | -130752 |
| 37 | 160526 |
| 38 | 319520 |