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 | 3 |
| 3 | 7 |
| 4 | 12 |
| 5 | 24 |
| 6 | 45 |
| 7 | 86 |
| 8 | 164 |
| 9 | 312 |
| 10 | 595 |
| 11 | 1133 |
| 12 | 2159 |
| 13 | 4113 |
| 14 | 7836 |
| 15 | 14929 |
| 16 | 28442 |
| 17 | 54187 |
| 18 | 103235 |
| 19 | 196680 |
| 20 | 374708 |
| 21 | 713881 |
| 22 | 1360062 |
| 23 | 2591144 |
| 24 | 4936560 |
| 25 | 9404967 |
| 26 | 17918025 |
| 27 | 34136815 |
| 28 | 65036305 |
| 29 | 123904968 |
| 30 | 236059553 |
| 31 | 449732674 |
| 32 | 856815475 |
| 33 | 1632375855 |