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 | 3 |
| 2 | 4 |
| 3 | 7 |
| 4 | 13 |
| 5 | 22 |
| 6 | 38 |
| 7 | 66 |
| 8 | 115 |
| 9 | 198 |
| 10 | 344 |
| 11 | 595 |
| 12 | 1031 |
| 13 | 1786 |
| 14 | 3093 |
| 15 | 5357 |
| 16 | 9279 |
| 17 | 16071 |
| 18 | 27836 |
| 19 | 48213 |
| 20 | 83508 |
| 21 | 144640 |
| 22 | 250524 |
| 23 | 433920 |
| 24 | 751571 |
| 25 | 1301759 |
| 26 | 2254713 |
| 27 | 3905278 |
| 28 | 6764140 |
| 29 | 11715834 |
| 30 | 20292419 |
| 31 | 35147501 |
| 32 | 60877257 |
| 33 | 105442502 |
| 34 | 182631770 |
| 35 | 316327505 |
| 36 | 547895310 |
| 37 | 948982514 |
| 38 | 1643685930 |
| 39 | 2846947542 |