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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 8 |
| 5 | 18 |
| 6 | 36 |
| 7 | 71 |
| 8 | 135 |
| 9 | 252 |
| 10 | 462 |
| 11 | 836 |
| 12 | 1496 |
| 13 | 2653 |
| 14 | 4669 |
| 15 | 8164 |
| 16 | 14196 |
| 17 | 24566 |
| 18 | 42332 |
| 19 | 72675 |
| 20 | 124355 |
| 21 | 212156 |
| 22 | 360986 |
| 23 | 612744 |
| 24 | 1037808 |
| 25 | 1754233 |
| 26 | 2959801 |
| 27 | 4985476 |
| 28 | 8384480 |
| 29 | 14080602 |
| 30 | 23614932 |
| 31 | 39556031 |
| 32 | 66181311 |
| 33 | 110608188 |
| 34 | 184670694 |