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 | 3 |
| 2 | 5 |
| 3 | 3 |
| 4 | -8 |
| 5 | -27 |
| 6 | -37 |
| 7 | -3 |
| 8 | 103 |
| 9 | 240 |
| 10 | 233 |
| 11 | -189 |
| 12 | -1115 |
| 13 | -1941 |
| 14 | -1048 |
| 15 | 3405 |
| 16 | 10747 |
| 17 | 14013 |
| 18 | -433 |
| 19 | -42528 |
| 20 | -94127 |
| 21 | -85053 |
| 22 | 88325 |
| 23 | 450387 |
| 24 | 748504 |
| 25 | 343605 |
| 26 | -1448869 |
| 27 | -4269507 |
| 28 | -5281865 |
| 29 | 811728 |
| 30 | 17484857 |
| 31 | 36819843 |
| 32 | 30752293 |