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 | 2 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 9 |
| 7 | 14 |
| 8 | 20 |
| 9 | 30 |
| 10 | 50 |
| 11 | 77 |
| 12 | 112 |
| 13 | 182 |
| 14 | 294 |
| 15 | 450 |
| 16 | 672 |
| 17 | 1122 |
| 18 | 1782 |
| 19 | 2717 |
| 20 | 4290 |
| 21 | 7007 |
| 22 | 11011 |
| 23 | 16744 |
| 24 | 27456 |
| 25 | 44200 |
| 26 | 68952 |
| 27 | 107406 |
| 28 | 176358 |
| 29 | 281010 |
| 30 | 436050 |
| 31 | 700910 |
| 32 | 1136960 |
| 33 | 1797818 |
| 34 | 2778446 |
| 35 | 4576264 |
| 36 | 7354710 |
| 37 | 11560835 |
| 38 | 18349630 |
| 39 | 29910465 |
| 40 | 47720400 |