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 | 3 |
| 5 | 7 |
| 6 | 8 |
| 7 | 18 |
| 8 | 19 |
| 9 | 47 |
| 10 | 43 |
| 11 | 102 |
| 12 | 116 |
| 13 | 238 |
| 14 | 240 |
| 15 | 553 |
| 16 | 554 |
| 17 | 1185 |
| 18 | 1259 |
| 19 | 2578 |
| 20 | 2607 |
| 21 | 5873 |
| 22 | 5526 |
| 23 | 11834 |
| 24 | 12601 |
| 25 | 24692 |
| 26 | 24390 |
| 27 | 53735 |
| 28 | 52534 |
| 29 | 107445 |
| 30 | 107330 |
| 31 | 218727 |
| 32 | 215607 |
| 33 | 461367 |
| 34 | 427778 |
| 35 | 891039 |
| 36 | 910294 |
| 37 | 1804606 |
| 38 | 1706828 |
| 39 | 3695418 |
| 40 | 3411513 |
| 41 | 7136850 |
| 42 | 6892950 |