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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 7 |
| 6 | 4 |
| 7 | 17 |
| 8 | 29 |
| 9 | 46 |
| 10 | 121 |
| 11 | 243 |
| 12 | 408 |
| 13 | 833 |
| 14 | 1929 |
| 15 | 3658 |
| 16 | 6353 |
| 17 | 12815 |
| 18 | 30844 |
| 19 | 61009 |
| 20 | 100133 |
| 21 | 216534 |
| 22 | 514233 |
| 23 | 930107 |
| 24 | 1686288 |
| 25 | 3352737 |
| 26 | 8264081 |
| 27 | 15163506 |
| 28 | 27077825 |
| 29 | 53153175 |
| 30 | 133991380 |
| 31 | 243114769 |
| 32 | 428343405 |
| 33 | 854649182 |
| 34 | 2120804377 |
| 35 | 3870970883 |
| 36 | 6937439304 |