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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 14 |
| 6 | 26 |
| 7 | 49 |
| 8 | 92 |
| 9 | 174 |
| 10 | 328 |
| 11 | 618 |
| 12 | 1166 |
| 13 | 2197 |
| 14 | 4143 |
| 15 | 7811 |
| 16 | 14726 |
| 17 | 27764 |
| 18 | 52344 |
| 19 | 98687 |
| 20 | 186058 |
| 21 | 350784 |
| 22 | 661347 |
| 23 | 1246865 |
| 24 | 2350768 |
| 25 | 4432000 |
| 26 | 8355837 |
| 27 | 15753609 |
| 28 | 29700940 |
| 29 | 55996428 |
| 30 | 105572414 |
| 31 | 199040101 |
| 32 | 375258649 |
| 33 | 707490872 |
| 34 | 1333862213 |
| 35 | 2514786376 |