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 | 3 |
| 3 | 5 |
| 4 | 10 |
| 5 | 18 |
| 6 | 34 |
| 7 | 61 |
| 8 | 110 |
| 9 | 198 |
| 10 | 357 |
| 11 | 642 |
| 12 | 1156 |
| 13 | 2082 |
| 14 | 3748 |
| 15 | 6746 |
| 16 | 12143 |
| 17 | 21859 |
| 18 | 39346 |
| 19 | 70823 |
| 20 | 127482 |
| 21 | 229468 |
| 22 | 413042 |
| 23 | 743477 |
| 24 | 1338258 |
| 25 | 2408865 |
| 26 | 4335958 |
| 27 | 7804725 |
| 28 | 14048506 |
| 29 | 25287310 |
| 30 | 45517159 |
| 31 | 81930887 |
| 32 | 147475597 |
| 33 | 265456074 |