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 | -5 |
| 3 | 5 |
| 4 | 20 |
| 5 | 17 |
| 6 | 39 |
| 7 | 129 |
| 8 | 140 |
| 9 | 127 |
| 10 | 305 |
| 11 | 431 |
| 12 | 448 |
| 13 | 603 |
| 14 | 777 |
| 15 | 1037 |
| 16 | 1540 |
| 17 | 1313 |
| 18 | 1951 |
| 19 | 2373 |
| 20 | 2450 |
| 21 | 2861 |
| 22 | 3407 |
| 23 | 3975 |
| 24 | 4656 |
| 25 | 5329 |
| 26 | 6073 |
| 27 | 6951 |
| 28 | 7092 |
| 29 | 7983 |
| 30 | 8091 |
| 31 | 11063 |
| 32 | 11290 |
| 33 | 14695 |
| 34 | 12749 |
| 35 | 14143 |
| 36 | 14276 |
| 37 | 18495 |
| 38 | 20201 |
| 39 | 20571 |
| 40 | 25612 |
| 41 | 21065 |
| 42 | 28283 |