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 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 6 |
| 5 | 9 |
| 6 | 14 |
| 7 | 23 |
| 8 | 41 |
| 9 | 76 |
| 10 | 151 |
| 11 | 310 |
| 12 | 665 |
| 13 | 1467 |
| 14 | 3325 |
| 15 | 7672 |
| 16 | 18031 |
| 17 | 42925 |
| 18 | 103448 |
| 19 | 251732 |
| 20 | 618051 |
| 21 | 1528777 |
| 22 | 3807435 |
| 23 | 9539015 |
| 24 | 24029260 |
| 25 | 60826848 |
| 26 | 154666260 |
| 27 | 394882063 |
| 28 | 1011987677 |
| 29 | 2602494798 |
| 30 | 6714341561 |
| 31 | 17374649352 |
| 32 | 45085903121 |