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 | 3 |
| 2 | 5 |
| 3 | 8 |
| 4 | 14 |
| 5 | 24 |
| 6 | 47 |
| 7 | 89 |
| 8 | 187 |
| 9 | 396 |
| 10 | 881 |
| 11 | 1990 |
| 12 | 4645 |
| 13 | 10935 |
| 14 | 26211 |
| 15 | 63320 |
| 16 | 154378 |
| 17 | 378444 |
| 18 | 933023 |
| 19 | 2308957 |
| 20 | 5735372 |
| 21 | 14286908 |
| 22 | 35683815 |
| 23 | 89324138 |
| 24 | 224057919 |
| 25 | 563033979 |
| 26 | 1417210457 |
| 27 | 3572641304 |
| 28 | 9018885122 |
| 29 | 22796905056 |
| 30 | 57692673963 |
| 31 | 146167385345 |
| 32 | 370710166435 |