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 | -1 |
| 3 | -2 |
| 4 | -2 |
| 5 | -3 |
| 6 | -2 |
| 7 | -3 |
| 8 | -2 |
| 9 | -2 |
| 10 | 0 |
| 11 | 0 |
| 12 | 3 |
| 13 | 4 |
| 14 | 8 |
| 15 | 9 |
| 16 | 14 |
| 17 | 16 |
| 18 | 22 |
| 19 | 24 |
| 20 | 30 |
| 21 | 32 |
| 22 | 39 |
| 23 | 40 |
| 24 | 46 |
| 25 | 46 |
| 26 | 51 |
| 27 | 48 |
| 28 | 52 |
| 29 | 46 |
| 30 | 46 |
| 31 | 36 |
| 32 | 32 |
| 33 | 16 |
| 34 | 8 |
| 35 | -15 |
| 36 | -30 |
| 37 | -60 |
| 38 | -82 |
| 39 | -122 |
| 40 | -151 |
| 41 | -200 |
| 42 | -238 |
| 43 | -296 |
| 44 | -342 |
| 45 | -412 |
| 46 | -464 |
| 47 | -542 |
| 48 | -602 |
| 49 | -686 |
| 50 | -750 |
| 51 | -841 |
| 52 | -904 |
| 53 | -996 |
| 54 | -1058 |
| 55 | -1146 |
| 56 | -1198 |