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 | 7 |
| 2 | 3 |
| 3 | 3 |
| 4 | 31 |
| 5 | 389 |
| 6 | 1021 |
| 7 | 2243 |
| 8 | 1831 |
| 9 | 5849 |
| 10 | 15361 |
| 11 | 9887 |
| 12 | 3877 |
| 13 | 4157 |
| 14 | 919 |
| 15 | 22637 |
| 16 | 14449 |
| 17 | 27617 |
| 18 | 80221 |
| 19 | 5039 |
| 20 | 51043 |
| 21 | 14009 |
| 22 | 126079 |
| 23 | 24443 |
| 24 | 68311 |
| 25 | 49193 |
| 26 | 47059 |
| 27 | 13049 |
| 28 | 253681 |
| 29 | 271409 |
| 30 | 221227 |
| 31 | 138869 |
| 32 | 116953 |
| 33 | 146297 |
| 34 | 21841 |
| 35 | 1211549 |
| 36 | 322501 |
| 37 | 212633 |
| 38 | 281791 |
| 39 | 216071 |
| 40 | 1901749 |
| 41 | 38747 |
| 42 | 116437 |