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 | 3 |
| 4 | 5 |
| 5 | 9 |
| 6 | 15 |
| 7 | 26 |
| 8 | 44 |
| 9 | 75 |
| 10 | 254 |
| 11 | 470 |
| 12 | 1130 |
| 13 | 2150 |
| 14 | 4369 |
| 15 | 8889 |
| 16 | 17112 |
| 17 | 33235 |
| 18 | 62619 |
| 19 | 117687 |
| 20 | 259213 |
| 21 | 500978 |
| 22 | 1073742 |
| 23 | 2114851 |
| 24 | 4334588 |
| 25 | 8817832 |
| 26 | 17673956 |
| 27 | 35420952 |
| 28 | 69871967 |
| 29 | 137274169 |
| 30 | 281650158 |
| 31 | 556043329 |
| 32 | 1139084899 |
| 33 | 2264971273 |
| 34 | 4589226181 |
| 35 | 9256382600 |