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 | 0 |
| 2 | -1 |
| 3 | -3 |
| 4 | 14 |
| 5 | 15 |
| 6 | 15 |
| 7 | 14 |
| 8 | 12 |
| 9 | 9 |
| 10 | 5 |
| 11 | -55 |
| 12 | -126 |
| 13 | -208 |
| 14 | -301 |
| 15 | -405 |
| 16 | -520 |
| 17 | -646 |
| 18 | -783 |
| 19 | -931 |
| 20 | -1090 |
| 21 | -1260 |
| 22 | -1441 |
| 23 | -1633 |
| 24 | -1836 |
| 25 | -2050 |
| 26 | -2275 |
| 27 | -2511 |
| 28 | -2758 |
| 29 | -3016 |
| 30 | -3285 |
| 31 | -3565 |
| 32 | 12144 |
| 33 | 12342 |
| 34 | 12529 |
| 35 | 12705 |
| 36 | 12870 |
| 37 | 13024 |
| 38 | 13167 |
| 39 | 13299 |
| 40 | 13420 |