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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 11 |
| 11 | 56 |
| 12 | 221 |
| 13 | 716 |
| 14 | 2003 |
| 15 | 5006 |
| 16 | 11441 |
| 17 | 24312 |
| 18 | 48648 |
| 19 | 92721 |
| 20 | 170811 |
| 21 | 311886 |
| 22 | 589590 |
| 23 | 1220979 |
| 24 | 2864973 |
| 25 | 7450852 |
| 26 | 20309628 |
| 27 | 55305706 |
| 28 | 146505451 |
| 29 | 373452808 |
| 30 | 913836082 |
| 31 | 2150455648 |
| 32 | 4887179761 |
| 33 | 10794337952 |
| 34 | 23375638064 |
| 35 | 50219351232 |