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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 9 |
| 6 | 14 |
| 7 | 23 |
| 8 | 38 |
| 9 | 61 |
| 10 | 99 |
| 11 | 161 |
| 12 | 260 |
| 13 | 421 |
| 14 | 682 |
| 15 | 1103 |
| 16 | 1785 |
| 17 | 2889 |
| 18 | 4674 |
| 19 | 7563 |
| 20 | 12238 |
| 21 | 19801 |
| 22 | 32039 |
| 23 | 51841 |
| 24 | 83880 |
| 25 | 135721 |
| 26 | 219602 |
| 27 | 355323 |
| 28 | 574925 |
| 29 | 930249 |
| 30 | 1505174 |