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 | 0 |
| 9 | 0 |
| 10 | 1 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 0 |
| 19 | 2 |
| 20 | -1 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 0 |
| 27 | 0 |
| 28 | 10 |
| 29 | -14 |
| 30 | 5 |
| 31 | 0 |
| 32 | 0 |
| 33 | 0 |
| 34 | 0 |
| 35 | 0 |
| 36 | 9 |
| 37 | 34 |
| 38 | -105 |
| 39 | 84 |
| 40 | -21 |
| 41 | 0 |
| 42 | 0 |
| 43 | 0 |
| 44 | 30 |
| 45 | 36 |
| 46 | 36 |
| 47 | -594 |
| 48 | 911 |
| 49 | -524 |
| 50 | 106 |
| 51 | 22 |
| 52 | 69 |
| 53 | 102 |
| 54 | -86 |
| 55 | -268 |
| 56 | -2557 |
| 57 | 7446 |
| 58 | -7464 |
| 59 | 3418 |
| 60 | -361 |
| 61 | 50 |
| 62 | -158 |
| 63 | -1142 |
| 64 | -1850 |
| 65 | -7216 |