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 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | -1 |
| 9 | 0 |
| 10 | 1 |
| 11 | 4 |
| 12 | -5 |
| 13 | 1 |
| 14 | 0 |
| 15 | 1 |
| 16 | 11 |
| 17 | -14 |
| 18 | 1 |
| 19 | 2 |
| 20 | 0 |
| 21 | 1 |
| 22 | 26 |
| 23 | -24 |
| 24 | -29 |
| 25 | 36 |
| 26 | -9 |
| 27 | 0 |
| 28 | 1 |
| 29 | 57 |
| 30 | 1 |
| 31 | -244 |
| 32 | 281 |
| 33 | -104 |
| 34 | 9 |
| 35 | 0 |
| 36 | 1 |
| 37 | 120 |
| 38 | 225 |
| 39 | -1259 |
| 40 | 1401 |
| 41 | -454 |
| 42 | -83 |
| 43 | 50 |
| 44 | 0 |
| 45 | 1 |
| 46 | 247 |
| 47 | 1268 |
| 48 | -5081 |
| 49 | 4621 |
| 50 | 911 |
| 51 | -3422 |
| 52 | 1723 |
| 53 | -267 |
| 54 | 0 |
| 55 | 1 |
| 56 | 502 |
| 57 | 5278 |
| 58 | -16981 |
| 59 | 5335 |
| 60 | 30871 |