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 | -4 |
| 2 | -2 |
| 3 | 16 |
| 4 | 13 |
| 5 | -12 |
| 6 | -78 |
| 7 | -72 |
| 8 | 54 |
| 9 | 244 |
| 10 | 444 |
| 11 | 184 |
| 12 | -543 |
| 13 | -1592 |
| 14 | -2106 |
| 15 | -1040 |
| 16 | 2256 |
| 17 | 7360 |
| 18 | 11010 |
| 19 | 9096 |
| 20 | -3000 |
| 21 | -24484 |
| 22 | -49358 |
| 23 | -60888 |
| 24 | -38432 |
| 25 | 32956 |
| 26 | 150792 |
| 27 | 275608 |
| 28 | 335573 |
| 29 | 231568 |
| 30 | -109460 |
| 31 | -689560 |
| 32 | -1365517 |
| 33 | -1832404 |
| 34 | -1649570 |
| 35 | -386008 |
| 36 | 2148258 |
| 37 | 5640240 |