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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 9 |
| 7 | 14 |
| 8 | 28 |
| 9 | 44 |
| 10 | 83 |
| 11 | 136 |
| 12 | 250 |
| 13 | 424 |
| 14 | 757 |
| 15 | 1310 |
| 16 | 2313 |
| 17 | 4018 |
| 18 | 7081 |
| 19 | 12314 |
| 20 | 21650 |
| 21 | 37786 |
| 22 | 66264 |
| 23 | 115802 |
| 24 | 202950 |
| 25 | 354858 |
| 26 | 621525 |
| 27 | 1087252 |
| 28 | 1903668 |
| 29 | 3330882 |
| 30 | 5831192 |
| 31 | 10204250 |
| 32 | 17862232 |
| 33 | 31260222 |
| 34 | 54716913 |
| 35 | 95762576 |
| 36 | 167614445 |
| 37 | 293356422 |
| 38 | 513456686 |