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 | -2 |
| 4 | 2 |
| 5 | 1 |
| 6 | 0 |
| 7 | 4 |
| 8 | 4 |
| 9 | 1 |
| 10 | 6 |
| 11 | 8 |
| 12 | 22 |
| 13 | 6 |
| 14 | 1 |
| 15 | 0 |
| 16 | 16 |
| 17 | 136 |
| 18 | 52 |
| 19 | 8 |
| 20 | 1 |
| 21 | -20 |
| 22 | 32 |
| 23 | 886 |
| 24 | 504 |
| 25 | 94 |
| 26 | 10 |
| 27 | 1 |
| 28 | 0 |
| 29 | 64 |
| 30 | 5944 |
| 31 | 5136 |
| 32 | 1232 |
| 33 | 148 |
| 34 | 12 |
| 35 | 1 |
| 36 | 70 |
| 37 | 128 |
| 38 | 40636 |
| 39 | 53856 |
| 40 | 16966 |
| 41 | 2440 |
| 42 | 214 |
| 43 | 14 |
| 44 | 1 |
| 45 | 0 |
| 46 | 256 |
| 47 | 281488 |
| 48 | 575296 |
| 49 | 240368 |
| 50 | 42256 |
| 51 | 4248 |
| 52 | 292 |
| 53 | 16 |
| 54 | 1 |
| 55 | -252 |
| 56 | 512 |
| 57 | 1968934 |
| 58 | 6225792 |
| 59 | 3468844 |
| 60 | 752800 |
| 61 | 88566 |
| 62 | 6776 |
| 63 | 382 |
| 64 | 18 |
| 65 | 1 |