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 | 17 |
| 2 | 1378 |
| 3 | 170257 |
| 4 | 25561876 |
| 5 | 4294835666 |
| 6 | 776487013506 |
| 7 | 147812510671121 |
| 8 | 29234435383857304 |
| 9 | 5955068493838815892 |
| 10 | 1241820686691538181636 |
| 11 | 263946916625793118532050 |
| 12 | 56996643356459050103185444 |
| 13 | 12473214064899644269110156626 |
| 14 | 2760963661677614009262282769378 |