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 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 9 |
| 6 | 18 |
| 7 | 27 |
| 8 | 50 |
| 9 | 79 |
| 10 | 135 |
| 11 | 215 |
| 12 | 361 |
| 13 | 564 |
| 14 | 923 |
| 15 | 1450 |
| 16 | 2305 |
| 17 | 3590 |
| 18 | 5645 |
| 19 | 8693 |
| 20 | 13479 |
| 21 | 20611 |
| 22 | 31560 |
| 23 | 47880 |
| 24 | 72601 |
| 25 | 109195 |
| 26 | 164126 |
| 27 | 245109 |
| 28 | 365282 |
| 29 | 541642 |
| 30 | 801380 |
| 31 | 1180281 |
| 32 | 1734332 |
| 33 | 2538490 |
| 34 | 3706287 |
| 35 | 5392883 |
| 36 | 7827571 |
| 37 | 11325879 |
| 38 | 16348515 |
| 39 | 23530961 |