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 | 0 |
| 4 | 0 |
| 5 | -2 |
| 6 | -2 |
| 7 | 2 |
| 8 | 4 |
| 9 | 2 |
| 10 | -1 |
| 11 | -4 |
| 12 | -6 |
| 13 | -4 |
| 14 | 5 |
| 15 | 12 |
| 16 | 7 |
| 17 | -2 |
| 18 | -10 |
| 19 | -16 |
| 20 | -9 |
| 21 | 12 |
| 22 | 25 |
| 23 | 16 |
| 24 | -5 |
| 25 | -24 |
| 26 | -34 |
| 27 | -18 |
| 28 | 26 |
| 29 | 54 |
| 30 | 36 |
| 31 | -8 |
| 32 | -50 |
| 33 | -70 |
| 34 | -35 |
| 35 | 48 |
| 36 | 102 |
| 37 | 70 |
| 38 | -16 |
| 39 | -100 |
| 40 | -134 |
| 41 | -62 |
| 42 | 93 |
| 43 | 194 |
| 44 | 137 |
| 45 | -26 |
| 46 | -186 |
| 47 | -246 |
| 48 | -114 |
| 49 | 164 |
| 50 | 341 |
| 51 | 244 |
| 52 | -47 |
| 53 | -338 |
| 54 | -434 |
| 55 | -192 |
| 56 | 289 |
| 57 | 598 |
| 58 | 433 |
| 59 | -76 |
| 60 | -583 |
| 61 | -748 |
| 62 | -325 |
| 63 | 486 |
| 64 | 1001 |