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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 11 |
| 7 | 22 |
| 8 | 44 |
| 9 | 92 |
| 10 | 193 |
| 11 | 414 |
| 12 | 896 |
| 13 | 1966 |
| 14 | 4347 |
| 15 | 9700 |
| 16 | 21787 |
| 17 | 49262 |
| 18 | 111976 |
| 19 | 255824 |
| 20 | 586996 |
| 21 | 765220 |
| 22 | 1187129 |
| 23 | 2186146 |
| 24 | 3966763 |
| 25 | 7642844 |
| 26 | 14733649 |
| 27 | 29037924 |
| 28 | 57062745 |
| 29 | 113051998 |
| 30 | 222948526 |
| 31 | 438614648 |
| 32 | 853410655 |
| 33 | 1637949306 |
| 34 | 3069032471 |
| 35 | 5548974602 |
| 36 | 9438433065 |