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 | 3 |
| 3 | 6 |
| 4 | 14 |
| 5 | 26 |
| 6 | 60 |
| 7 | 112 |
| 8 | 244 |
| 9 | 480 |
| 10 | 992 |
| 11 | 1944 |
| 12 | 4048 |
| 13 | 7936 |
| 14 | 16176 |
| 15 | 32320 |
| 16 | 65088 |
| 17 | 129504 |
| 18 | 261248 |
| 19 | 520448 |
| 20 | 1046208 |
| 21 | 2090240 |
| 22 | 4186624 |
| 23 | 8365696 |
| 24 | 16766464 |
| 25 | 33503744 |
| 26 | 67064064 |
| 27 | 134113280 |
| 28 | 268347392 |
| 29 | 536546816 |
| 30 | 1073575936 |
| 31 | 2146703360 |
| 32 | 4294425600 |
| 33 | 8588476416 |
| 34 | 17178349568 |