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 | -7 |
| 3 | 8 |
| 4 | -22 |
| 5 | 23 |
| 6 | -45 |
| 7 | 46 |
| 8 | -76 |
| 9 | 77 |
| 10 | -115 |
| 11 | 116 |
| 12 | -162 |
| 13 | 163 |
| 14 | -217 |
| 15 | 218 |
| 16 | -280 |
| 17 | 281 |
| 18 | -351 |
| 19 | 352 |
| 20 | -430 |
| 21 | 431 |
| 22 | -517 |
| 23 | 518 |
| 24 | -612 |
| 25 | 613 |
| 26 | -715 |
| 27 | 716 |
| 28 | -826 |
| 29 | 827 |
| 30 | -945 |
| 31 | 946 |
| 32 | -1072 |
| 33 | 1073 |
| 34 | -1207 |
| 35 | 1208 |
| 36 | -1350 |
| 37 | 1351 |
| 38 | -1501 |
| 39 | 1502 |
| 40 | -1660 |
| 41 | 1661 |
| 42 | -1827 |
| 43 | 1828 |
| 44 | -2002 |
| 45 | 2003 |
| 46 | -2185 |
| 47 | 2186 |