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 | 5 |
| 1 | 7 |
| 2 | 10 |
| 3 | 14 |
| 4 | 20 |
| 5 | 29 |
| 6 | 42 |
| 7 | 61 |
| 8 | 89 |
| 9 | 130 |
| 10 | 190 |
| 11 | 278 |
| 12 | 407 |
| 13 | 596 |
| 14 | 873 |
| 15 | 1279 |
| 16 | 1874 |
| 17 | 2746 |
| 18 | 4024 |
| 19 | 5897 |
| 20 | 8642 |
| 21 | 12665 |
| 22 | 18561 |
| 23 | 27202 |
| 24 | 39866 |
| 25 | 58426 |
| 26 | 85627 |
| 27 | 125492 |
| 28 | 183917 |
| 29 | 269543 |
| 30 | 395034 |
| 31 | 578950 |
| 32 | 848492 |
| 33 | 1243525 |
| 34 | 1822474 |
| 35 | 2670965 |
| 36 | 3914489 |
| 37 | 5736962 |
| 38 | 8407926 |
| 39 | 12322414 |
| 40 | 18059375 |