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 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 2 |
| 7 | 4 |
| 8 | 8 |
| 9 | 16 |
| 10 | 32 |
| 11 | 63 |
| 12 | 124 |
| 13 | 244 |
| 14 | 480 |
| 15 | 944 |
| 16 | 1856 |
| 17 | 3649 |
| 18 | 7174 |
| 19 | 14104 |
| 20 | 27728 |
| 21 | 54512 |
| 22 | 107168 |
| 23 | 210687 |
| 24 | 414200 |
| 25 | 814296 |
| 26 | 1600864 |
| 27 | 3147216 |
| 28 | 6187264 |
| 29 | 12163841 |
| 30 | 23913482 |
| 31 | 47012668 |
| 32 | 92424472 |
| 33 | 181701728 |
| 34 | 357216192 |
| 35 | 702268543 |
| 36 | 1380623604 |
| 37 | 2714234540 |