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) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 9 |
| 6 | 12 |
| 7 | 17 |
| 8 | 30 |
| 9 | 51 |
| 10 | 88 |
| 11 | 149 |
| 12 | 264 |
| 13 | 439 |
| 14 | 746 |
| 15 | 1261 |
| 16 | 2234 |
| 17 | 4211 |
| 18 | 7996 |
| 19 | 14899 |
| 20 | 28048 |
| 21 | 54037 |
| 22 | 106442 |
| 23 | 208625 |
| 24 | 398588 |
| 25 | 735365 |
| 26 | 1331590 |
| 27 | 2421573 |
| 28 | 4481896 |
| 29 | 8504953 |
| 30 | 16497150 |
| 31 | 32595915 |
| 32 | 64614636 |
| 33 | 127968263 |
| 34 | 252470776 |
| 35 | 495388085 |
| 36 | 962475122 |
| 37 | 1847742473 |
| 38 | 3504948056 |