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 | -84 |
| 2 | -82 |
| 3 | -456 |
| 4 | 4869 |
| 5 | -2524 |
| 6 | -10778 |
| 7 | 6888 |
| 8 | -11150 |
| 9 | 4124 |
| 10 | 38304 |
| 11 | 81704 |
| 12 | -71401 |
| 13 | -225288 |
| 14 | 99798 |
| 15 | -40480 |
| 16 | 212016 |
| 17 | 37392 |
| 18 | -419442 |
| 19 | 905352 |
| 20 | 141402 |
| 21 | -690428 |
| 22 | -399258 |
| 23 | -682032 |
| 24 | -615607 |
| 25 | 936600 |
| 26 | 1813118 |
| 27 | 206968 |
| 28 | -346416 |
| 29 | -966028 |
| 30 | 1887670 |
| 31 | -2220264 |
| 32 | 883796 |
| 33 | 2965868 |