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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 1 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 2 |
| 16 | -1 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 0 |
| 21 | 0 |
| 22 | 10 |
| 23 | -14 |
| 24 | 5 |
| 25 | 0 |
| 26 | 0 |
| 27 | 0 |
| 28 | 9 |
| 29 | 34 |
| 30 | -105 |
| 31 | 84 |
| 32 | -21 |
| 33 | 0 |
| 34 | 30 |
| 35 | 36 |
| 36 | 36 |
| 37 | -594 |
| 38 | 911 |
| 39 | -502 |
| 40 | 174 |
| 41 | 102 |
| 42 | -86 |
| 43 | -272 |
| 44 | -2494 |
| 45 | 7498 |
| 46 | -7331 |
| 47 | 3416 |
| 48 | -679 |
| 49 | -1044 |
| 50 | -1766 |
| 51 | -7042 |
| 52 | 48799 |
| 53 | -79886 |
| 54 | 59347 |