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 | 1 |
| 3 | 3 |
| 4 | 1 |
| 5 | 9 |
| 6 | 13 |
| 7 | 1 |
| 8 | 21 |
| 9 | 78 |
| 10 | 75 |
| 11 | 1 |
| 12 | 45 |
| 13 | 325 |
| 14 | 750 |
| 15 | 541 |
| 16 | 1 |
| 17 | 93 |
| 18 | 1170 |
| 19 | 4875 |
| 20 | 8115 |
| 21 | 4683 |
| 22 | 1 |
| 23 | 189 |
| 24 | 3913 |
| 25 | 26250 |
| 26 | 75740 |
| 27 | 98343 |
| 28 | 47293 |
| 29 | 1 |
| 30 | 381 |
| 31 | 12558 |
| 32 | 127575 |
| 33 | 568050 |
| 34 | 1245678 |
| 35 | 1324204 |
| 36 | 545835 |
| 37 | 1 |
| 38 | 765 |
| 39 | 39325 |
| 40 | 582750 |
| 41 | 3760491 |
| 42 | 12391218 |
| 43 | 21849366 |
| 44 | 19650060 |
| 45 | 7087261 |