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) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | -2 |
| 4 | -3 |
| 5 | -7 |
| 6 | -5 |
| 7 | -11 |
| 8 | -12 |
| 9 | -14 |
| 10 | -10 |
| 11 | -20 |
| 12 | -18 |
| 13 | -30 |
| 14 | -24 |
| 15 | -16 |
| 16 | -17 |
| 17 | -33 |
| 18 | -31 |
| 19 | -49 |
| 20 | -45 |
| 21 | -33 |
| 22 | -23 |
| 23 | -45 |
| 24 | -43 |
| 25 | -47 |
| 26 | -35 |
| 27 | -37 |
| 28 | -31 |
| 29 | -59 |
| 30 | -67 |
| 31 | -97 |
| 32 | -98 |
| 33 | -78 |
| 34 | -62 |
| 35 | -38 |
| 36 | -36 |
| 37 | -72 |
| 38 | -54 |
| 39 | -30 |
| 40 | -26 |
| 41 | -66 |
| 42 | -78 |
| 43 | -120 |
| 44 | -110 |
| 45 | -102 |
| 46 | -80 |
| 47 | -126 |
| 48 | -124 |
| 49 | -130 |