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 | -8 |
| 4 | 11 |
| 5 | -15 |
| 6 | 15 |
| 7 | -35 |
| 8 | 48 |
| 9 | -43 |
| 10 | 35 |
| 11 | -87 |
| 12 | 103 |
| 13 | -67 |
| 14 | 83 |
| 15 | -177 |
| 16 | 162 |
| 17 | -128 |
| 18 | 145 |
| 19 | -217 |
| 20 | 277 |
| 21 | -223 |
| 22 | 143 |
| 23 | -387 |
| 24 | 443 |
| 25 | -208 |
| 26 | 302 |
| 27 | -518 |
| 28 | 432 |
| 29 | -410 |
| 30 | 370 |
| 31 | -592 |
| 32 | 771 |
| 33 | -449 |
| 34 | 421 |
| 35 | -879 |
| 36 | 850 |
| 37 | -520 |
| 38 | 566 |
| 39 | -1134 |
| 40 | 1024 |
| 41 | -658 |
| 42 | 842 |
| 43 | -1008 |
| 44 | 1310 |
| 45 | -1056 |
| 46 | 534 |
| 47 | -1676 |
| 48 | 1714 |
| 49 | -737 |