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 | 3 |
| 2 | 9 |
| 3 | 22 |
| 4 | 50 |
| 5 | 104 |
| 6 | 208 |
| 7 | 394 |
| 8 | 724 |
| 9 | 1286 |
| 10 | 2229 |
| 11 | 3769 |
| 12 | 6253 |
| 13 | 10176 |
| 14 | 16303 |
| 15 | 25723 |
| 16 | 40055 |
| 17 | 61588 |
| 18 | 93647 |
| 19 | 140875 |
| 20 | 209889 |
| 21 | 309846 |
| 22 | 453565 |
| 23 | 658627 |
| 24 | 949310 |
| 25 | 1358589 |
| 26 | 1931464 |
| 27 | 2728547 |
| 28 | 3831654 |
| 29 | 5350119 |
| 30 | 7430158 |
| 31 | 10265669 |
| 32 | 14113795 |
| 33 | 19313168 |
| 34 | 26309405 |
| 35 | 35685523 |