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 | 1 |
| 2 | 3 |
| 3 | 1 |
| 4 | 16 |
| 5 | 7 |
| 6 | 1 |
| 7 | 115 |
| 8 | 61 |
| 9 | 15 |
| 10 | 1 |
| 11 | 1056 |
| 12 | 626 |
| 13 | 206 |
| 14 | 31 |
| 15 | 1 |
| 16 | 11774 |
| 17 | 7554 |
| 18 | 2989 |
| 19 | 659 |
| 20 | 63 |
| 21 | 1 |
| 22 | 154624 |
| 23 | 105099 |
| 24 | 47349 |
| 25 | 13308 |
| 26 | 2052 |
| 27 | 127 |
| 28 | 1 |
| 29 | 2337507 |
| 30 | 1660957 |
| 31 | 824331 |
| 32 | 274677 |
| 33 | 56935 |
| 34 | 6297 |
| 35 | 255 |
| 36 | 1 |
| 37 | 39984640 |
| 38 | 29428654 |
| 39 | 15747154 |
| 40 | 5960818 |
| 41 | 1518478 |
| 42 | 237862 |