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 | 0 |
| 1 | 11 |
| 2 | 12 |
| 3 | 24 |
| 4 | 37 |
| 5 | 62 |
| 6 | 100 |
| 7 | 163 |
| 8 | 264 |
| 9 | 428 |
| 10 | 693 |
| 11 | 1122 |
| 12 | 1816 |
| 13 | 2939 |
| 14 | 4756 |
| 15 | 7696 |
| 16 | 12453 |
| 17 | 20150 |
| 18 | 32604 |
| 19 | 52755 |
| 20 | 85360 |
| 21 | 138116 |
| 22 | 223477 |
| 23 | 361594 |
| 24 | 585072 |
| 25 | 946667 |
| 26 | 1531740 |
| 27 | 2478408 |
| 28 | 4010149 |
| 29 | 6488558 |
| 30 | 10498708 |