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 | 5 |
| 3 | 7 |
| 4 | 21 |
| 5 | 11 |
| 6 | 65 |
| 7 | 15 |
| 8 | 133 |
| 9 | 106 |
| 10 | 245 |
| 11 | 23 |
| 12 | 1077 |
| 13 | 27 |
| 14 | 1041 |
| 15 | 1637 |
| 16 | 3365 |
| 17 | 35 |
| 18 | 9992 |
| 19 | 39 |
| 20 | 18361 |
| 21 | 16401 |
| 22 | 22841 |
| 23 | 47 |
| 24 | 134461 |
| 25 | 15686 |
| 26 | 106917 |
| 27 | 179494 |
| 28 | 355173 |
| 29 | 59 |
| 30 | 1220075 |
| 31 | 63 |
| 32 | 1593189 |
| 33 | 1952705 |
| 34 | 2228909 |
| 35 | 631005 |
| 36 | 13778268 |
| 37 | 75 |
| 38 | 9962313 |
| 39 | 20732901 |
| 40 | 34805473 |
| 41 | 83 |
| 42 | 113693883 |