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 | -2 |
| 3 | 2 |
| 4 | -3 |
| 5 | 3 |
| 6 | -9 |
| 7 | -1 |
| 8 | -16 |
| 9 | -6 |
| 10 | -24 |
| 11 | -12 |
| 12 | -32 |
| 13 | -18 |
| 14 | -42 |
| 15 | -18 |
| 16 | -45 |
| 17 | -27 |
| 18 | -57 |
| 19 | -37 |
| 20 | -67 |
| 21 | -35 |
| 22 | -71 |
| 23 | -47 |
| 24 | -107 |
| 25 | -81 |
| 26 | -123 |
| 27 | -83 |
| 28 | -123 |
| 29 | -93 |
| 30 | -165 |
| 31 | -133 |
| 32 | -196 |
| 33 | -148 |
| 34 | -202 |
| 35 | -154 |
| 36 | -204 |
| 37 | -166 |
| 38 | -226 |
| 39 | -170 |
| 40 | -260 |
| 41 | -218 |
| 42 | -314 |
| 43 | -270 |
| 44 | -330 |
| 45 | -270 |
| 46 | -342 |
| 47 | -294 |
| 48 | -402 |
| 49 | -352 |
| 50 | -430 |