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 | 18 |
| 2 | 19 |
| 3 | 37 |
| 4 | 56 |
| 5 | 93 |
| 6 | 149 |
| 7 | 242 |
| 8 | 391 |
| 9 | 633 |
| 10 | 1024 |
| 11 | 1657 |
| 12 | 2681 |
| 13 | 4338 |
| 14 | 7019 |
| 15 | 11357 |
| 16 | 18376 |
| 17 | 29733 |
| 18 | 48109 |
| 19 | 77842 |
| 20 | 125951 |
| 21 | 203793 |
| 22 | 329744 |
| 23 | 533537 |
| 24 | 863281 |
| 25 | 1396818 |
| 26 | 2260099 |
| 27 | 3656917 |
| 28 | 5917016 |
| 29 | 9573933 |
| 30 | 15490949 |