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 | 2 |
| 1 | -14 |
| 2 | 28 |
| 3 | 26 |
| 4 | -203 |
| 5 | 427 |
| 6 | -741 |
| 7 | 1314 |
| 8 | -1575 |
| 9 | 264 |
| 10 | 3201 |
| 11 | -7953 |
| 12 | 11308 |
| 13 | -11440 |
| 14 | 13364 |
| 15 | -26403 |
| 16 | 50479 |
| 17 | -68549 |
| 18 | 59956 |
| 19 | -19930 |
| 20 | -50743 |
| 21 | 165880 |
| 22 | -319635 |
| 23 | 436575 |
| 24 | -424830 |
| 25 | 308193 |
| 26 | -258570 |
| 27 | 488410 |
| 28 | -1122459 |
| 29 | 2043162 |
| 30 | -2777783 |
| 31 | 2771340 |
| 32 | -1946892 |
| 33 | 726066 |
| 34 | 746643 |
| 35 | -3157458 |
| 36 | 7406770 |