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) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 1 |
| 3 | -6 |
| 4 | -20 |
| 5 | -43 |
| 6 | -77 |
| 7 | -124 |
| 8 | -186 |
| 9 | -265 |
| 10 | -363 |
| 11 | -482 |
| 12 | -624 |
| 13 | -791 |
| 14 | -985 |
| 15 | -1208 |
| 16 | -1462 |
| 17 | -1749 |
| 18 | -2071 |
| 19 | -2430 |
| 20 | -2828 |
| 21 | -3267 |
| 22 | -3749 |
| 23 | -4276 |
| 24 | -4850 |
| 25 | -5473 |
| 26 | -6147 |
| 27 | -6874 |
| 28 | -7656 |
| 29 | -8495 |
| 30 | -9393 |
| 31 | -10352 |
| 32 | -11374 |
| 33 | -12461 |
| 34 | -13615 |
| 35 | -14838 |
| 36 | -16132 |
| 37 | -17499 |
| 38 | -18941 |
| 39 | -20460 |
| 40 | -22058 |
| 41 | -23737 |