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 | 2 |
| 2 | 2 |
| 3 | 5 |
| 4 | 11 |
| 5 | 18 |
| 6 | 34 |
| 7 | 68 |
| 8 | 126 |
| 9 | 235 |
| 10 | 450 |
| 11 | 851 |
| 12 | 1601 |
| 13 | 3032 |
| 14 | 5739 |
| 15 | 10838 |
| 16 | 20489 |
| 17 | 38752 |
| 18 | 73252 |
| 19 | 138472 |
| 20 | 261813 |
| 21 | 494973 |
| 22 | 935737 |
| 23 | 1769080 |
| 24 | 3344567 |
| 25 | 6323023 |
| 26 | 11953991 |
| 27 | 22599701 |
| 28 | 42725841 |
| 29 | 80775310 |
| 30 | 152709940 |
| 31 | 288705927 |
| 32 | 545813094 |
| 33 | 1031887518 |
| 34 | 1950836005 |
| 35 | 3688154521 |