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 | -2 |
| 2 | 1 |
| 3 | -2 |
| 4 | -1 |
| 5 | 1 |
| 6 | -6 |
| 7 | -1 |
| 8 | 0 |
| 9 | 1 |
| 10 | -22 |
| 11 | -3 |
| 12 | 1 |
| 13 | 1 |
| 14 | 1 |
| 15 | -90 |
| 16 | -11 |
| 17 | 4 |
| 18 | 4 |
| 19 | 2 |
| 20 | 1 |
| 21 | -394 |
| 22 | -45 |
| 23 | 17 |
| 24 | 16 |
| 25 | 8 |
| 26 | 3 |
| 27 | 1 |
| 28 | -1806 |
| 29 | -197 |
| 30 | 76 |
| 31 | 69 |
| 32 | 34 |
| 33 | 13 |
| 34 | 4 |
| 35 | 1 |
| 36 | -8558 |
| 37 | -903 |
| 38 | 353 |
| 39 | 313 |
| 40 | 153 |
| 41 | 59 |
| 42 | 19 |
| 43 | 5 |
| 44 | 1 |
| 45 | -41586 |
| 46 | -4279 |
| 47 | 1688 |
| 48 | 1472 |
| 49 | 716 |
| 50 | 278 |
| 51 | 92 |
| 52 | 26 |
| 53 | 6 |
| 54 | 1 |
| 55 | -206098 |
| 56 | -20793 |
| 57 | 8257 |
| 58 | 7112 |
| 59 | 3448 |
| 60 | 1346 |
| 61 | 454 |
| 62 | 134 |
| 63 | 34 |