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 | 6 |
| 3 | -32 |
| 4 | 85 |
| 5 | -183 |
| 6 | 332 |
| 7 | -550 |
| 8 | 843 |
| 9 | -1229 |
| 10 | 1714 |
| 11 | -2316 |
| 12 | 3041 |
| 13 | -3907 |
| 14 | 4920 |
| 15 | -6098 |
| 16 | 7447 |
| 17 | -8985 |
| 18 | 10718 |
| 19 | -12664 |
| 20 | 14829 |
| 21 | -17231 |
| 22 | 19876 |
| 23 | -22782 |
| 24 | 25955 |
| 25 | -29413 |
| 26 | 33162 |
| 27 | -37220 |
| 28 | 41593 |
| 29 | -46299 |
| 30 | 51344 |
| 31 | -56746 |
| 32 | 62511 |
| 33 | -68657 |
| 34 | 75190 |
| 35 | -82128 |
| 36 | 89477 |
| 37 | -97255 |
| 38 | 105468 |
| 39 | -114134 |
| 40 | 123259 |
| 41 | -132861 |