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) |
|---|---|
| 6 | 1 |
| 7 | 1 |
| 8 | 3 |
| 9 | 7 |
| 10 | 12 |
| 11 | 30 |
| 12 | 61 |
| 13 | 126 |
| 14 | 258 |
| 15 | 537 |
| 16 | 1083 |
| 17 | 2205 |
| 18 | 4465 |
| 19 | 9023 |
| 20 | 18192 |
| 21 | 36612 |
| 22 | 73633 |
| 23 | 147893 |
| 24 | 296818 |
| 25 | 595313 |
| 26 | 1193351 |
| 27 | 2391121 |
| 28 | 4789448 |
| 29 | 9590503 |
| 30 | 19199906 |
| 31 | 38430421 |
| 32 | 76910470 |
| 33 | 153901337 |
| 34 | 307932963 |
| 35 | 616076971 |
| 36 | 1232495756 |
| 37 | 2465545205 |
| 38 | 4931986957 |
| 39 | 9865425657 |