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 | 5 |
| 4 | 11 |
| 5 | 19 |
| 6 | 42 |
| 7 | 98 |
| 8 | 205 |
| 9 | 429 |
| 10 | 936 |
| 11 | 2024 |
| 12 | 4316 |
| 13 | 9260 |
| 14 | 19949 |
| 15 | 42841 |
| 16 | 91917 |
| 17 | 197485 |
| 18 | 424331 |
| 19 | 911255 |
| 20 | 1957086 |
| 21 | 4203998 |
| 22 | 9029949 |
| 23 | 19394681 |
| 24 | 41657808 |
| 25 | 89478064 |
| 26 | 192189304 |
| 27 | 412801176 |
| 28 | 886657081 |
| 29 | 1904452689 |
| 30 | 4090567673 |
| 31 | 8786123349 |
| 32 | 18871714923 |
| 33 | 40534539675 |