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 | 0 |
| 2 | 4 |
| 3 | -48 |
| 4 | 224 |
| 5 | -448 |
| 6 | 40 |
| 7 | 1408 |
| 8 | -2240 |
| 9 | 1280 |
| 10 | -924 |
| 11 | -480 |
| 12 | 6944 |
| 13 | -8704 |
| 14 | 5864 |
| 15 | -14080 |
| 16 | 2240 |
| 17 | 33792 |
| 18 | -19064 |
| 19 | 11088 |
| 20 | -54432 |
| 21 | -4480 |
| 22 | 38400 |
| 23 | 43648 |
| 24 | 75712 |
| 25 | -124928 |
| 26 | -62100 |
| 27 | -70368 |
| 28 | 111552 |
| 29 | 87040 |
| 30 | 101992 |
| 31 | 14080 |
| 32 | -302848 |
| 33 | 53248 |
| 34 | -119040 |
| 35 | 228768 |
| 36 | -22400 |