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 | 52 |
| 7 | 166 |
| 8 | 425 |
| 9 | 1116 |
| 10 | 3392 |
| 11 | 10872 |
| 12 | 38795 |
| 13 | 102634 |
| 14 | 260334 |
| 15 | 651704 |
| 16 | 1707641 |
| 17 | 4477199 |
| 18 | 12277412 |
| 19 | 30970764 |
| 20 | 75239813 |
| 21 | 181934538 |
| 22 | 440594545 |
| 23 | 1063081418 |
| 24 | 2625678546 |
| 25 | 6286974074 |
| 26 | 14803016600 |
| 27 | 34534616815 |
| 28 | 80129926919 |
| 29 | 185059517397 |
| 30 | 431845849360 |
| 31 | 997735570874 |