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 | 10 |
| 2 | 163 |
| 3 | 2188 |
| 4 | 26245 |
| 5 | 295246 |
| 6 | 3188647 |
| 7 | 33480784 |
| 8 | 344373769 |
| 9 | 3486784402 |
| 10 | 34867844011 |
| 11 | 345191655700 |
| 12 | 3389154437773 |
| 13 | 33044255768278 |
| 14 | 320275094369455 |
| 15 | 3088366981419736 |
| 16 | 29648323021629457 |
| 17 | 283512088894331674 |
| 18 | 2701703435345984179 |
| 19 | 25666182635786849692 |
| 20 | 243153309181138576021 |