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) |
|---|---|
| 14 | 1 |
| 15 | -14 |
| 16 | 91 |
| 17 | -364 |
| 18 | 987 |
| 19 | -1820 |
| 20 | 1897 |
| 21 | 754 |
| 22 | -8008 |
| 23 | 18928 |
| 24 | -26845 |
| 25 | 19460 |
| 26 | 15015 |
| 27 | -76272 |
| 28 | 141065 |
| 29 | -163072 |
| 30 | 90727 |
| 31 | 99386 |
| 32 | -368277 |
| 33 | 602616 |
| 34 | -643734 |
| 35 | 358190 |
| 36 | 274547 |
| 37 | -1101100 |
| 38 | 1801086 |
| 39 | -1982330 |
| 40 | 1344525 |
| 41 | 148316 |
| 42 | -2163590 |
| 43 | 4032756 |
| 44 | -4938843 |
| 45 | 4216576 |