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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 7 |
| 9 | 8 |
| 10 | 9 |
| 11 | 14 |
| 12 | 19 |
| 13 | 28 |
| 14 | 47 |
| 15 | 61 |
| 16 | 75 |
| 17 | 197 |
| 18 | 742 |
| 19 | 1104 |
| 20 | 1537 |
| 21 | 2208 |
| 22 | 2580 |
| 23 | 3684 |
| 24 | 4788 |
| 25 | 7385 |
| 26 | 7647 |
| 27 | 7909 |
| 28 | 31331 |
| 29 | 34285 |
| 30 | 34348 |
| 31 | 55604 |
| 32 | 62662 |
| 33 | 86935 |
| 34 | 93993 |
| 35 | 120284 |
| 36 | 129106 |
| 37 | 147640 |
| 38 | 156146 |
| 39 | 174680 |
| 40 | 183186 |
| 41 | 298320 |
| 42 | 355419 |
| 43 | 694280 |
| 44 | 925993 |
| 45 | 1084051 |
| 46 | 7913837 |
| 47 | 11436171 |
| 48 | 33445755 |
| 49 | 44121607 |