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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 6 |
| 7 | 11 |
| 8 | 23 |
| 9 | 47 |
| 10 | 106 |
| 11 | 235 |
| 12 | 551 |
| 13 | 1301 |
| 14 | 3159 |
| 15 | 7741 |
| 16 | 19320 |
| 17 | 48629 |
| 18 | 123867 |
| 19 | 317955 |
| 20 | 823065 |
| 21 | 2144505 |
| 22 | 5623756 |
| 23 | 14828074 |
| 24 | 39299897 |
| 25 | 104636890 |
| 26 | 279793450 |
| 27 | 751065460 |
| 28 | 2023443032 |
| 29 | 5469566585 |
| 30 | 14830871802 |
| 31 | 40330829030 |
| 32 | 109972410221 |
| 33 | 300628862480 |
| 34 | 823779631721 |
| 35 | 2262366343746 |
| 36 | 6226306037178 |