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 | 15 |
| 7 | 23 |
| 8 | 37 |
| 9 | 58 |
| 10 | 91 |
| 11 | 143 |
| 12 | 225 |
| 13 | 354 |
| 14 | 556 |
| 15 | 874 |
| 16 | 1373 |
| 17 | 2157 |
| 18 | 3389 |
| 19 | 5324 |
| 20 | 8363 |
| 21 | 13137 |
| 22 | 20636 |
| 23 | 32415 |
| 24 | 50918 |
| 25 | 79982 |
| 26 | 125636 |
| 27 | 197349 |
| 28 | 309996 |
| 29 | 486941 |
| 30 | 764885 |
| 31 | 1201479 |
| 32 | 1887278 |
| 33 | 2964530 |
| 34 | 4656673 |
| 35 | 7314686 |
| 36 | 11489882 |
| 37 | 18048264 |
| 38 | 28350147 |
| 39 | 44532308 |
| 40 | 69951185 |
| 41 | 109879065 |