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 | 14 |
| 6 | 22 |
| 7 | 62 |
| 8 | 127 |
| 9 | 320 |
| 10 | 756 |
| 11 | 1888 |
| 12 | 4440 |
| 13 | 10996 |
| 14 | 26784 |
| 15 | 67004 |
| 16 | 166449 |
| 17 | 417848 |
| 18 | 1041262 |
| 19 | 2596506 |
| 20 | 6427116 |