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 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 10 |
| 7 | 21 |
| 8 | 38 |
| 9 | 84 |
| 10 | 156 |
| 11 | 352 |
| 12 | 677 |
| 13 | 1562 |
| 14 | 3054 |
| 15 | 7148 |
| 16 | 14196 |
| 17 | 33603 |
| 18 | 67474 |
| 19 | 161121 |
| 20 | 326519 |
| 21 | 785305 |
| 22 | 1603111 |
| 23 | 3878194 |
| 24 | 7965845 |
| 25 | 19365811 |
| 26 | 39983300 |
| 27 | 97610247 |
| 28 | 202424674 |
| 29 | 495955345 |
| 30 | 1032460679 |
| 31 | 2537529717 |
| 32 | 5300256499 |