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 | -1 |
| 2 | -3 |
| 3 | -2 |
| 4 | 1 |
| 5 | 9 |
| 6 | 11 |
| 7 | 15 |
| 8 | 6 |
| 9 | -18 |
| 10 | -46 |
| 11 | -54 |
| 12 | -115 |
| 13 | -101 |
| 14 | 32 |
| 15 | 82 |
| 16 | 182 |
| 17 | 455 |
| 18 | 804 |
| 19 | 915 |
| 20 | 434 |
| 21 | -114 |
| 22 | 196 |
| 23 | -974 |
| 24 | -3507 |
| 25 | -6913 |
| 26 | -7555 |
| 27 | -5081 |
| 28 | -4480 |
| 29 | -7463 |
| 30 | -4861 |
| 31 | 7677 |
| 32 | 25779 |
| 33 | 56080 |
| 34 | 76015 |
| 35 | 51021 |
| 36 | 53996 |
| 37 | 104670 |
| 38 | 114132 |
| 39 | 93920 |
| 40 | -33843 |
| 41 | -233380 |
| 42 | -491936 |
| 43 | -658774 |
| 44 | -597698 |
| 45 | -601576 |