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 | 1 |
| 1 | 3 |
| 2 | 1 |
| 3 | 15 |
| 4 | 6 |
| 5 | 1 |
| 6 | 93 |
| 7 | 39 |
| 8 | 9 |
| 9 | 1 |
| 10 | 675 |
| 11 | 285 |
| 12 | 75 |
| 13 | 12 |
| 14 | 1 |
| 15 | 5577 |
| 16 | 2331 |
| 17 | 657 |
| 18 | 123 |
| 19 | 15 |
| 20 | 1 |
| 21 | 51555 |
| 22 | 21153 |
| 23 | 6207 |
| 24 | 1269 |
| 25 | 183 |
| 26 | 18 |
| 27 | 1 |
| 28 | 526809 |
| 29 | 211227 |
| 30 | 63549 |
| 31 | 13743 |
| 32 | 2181 |
| 33 | 255 |
| 34 | 21 |
| 35 | 1 |
| 36 | 5895819 |
| 37 | 2304321 |
| 38 | 704319 |
| 39 | 158325 |
| 40 | 26739 |
| 41 | 3453 |
| 42 | 339 |
| 43 | 24 |
| 44 | 1 |
| 45 | 71733585 |
| 46 | 27291843 |
| 47 | 8424813 |
| 48 | 1947711 |
| 49 | 343641 |
| 50 | 47355 |
| 51 | 5145 |
| 52 | 435 |
| 53 | 27 |
| 54 | 1 |