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 | 23 |
| 2 | 2006 |
| 3 | 196308 |
| 4 | 19607514 |
| 5 | 1960399246 |
| 6 | 196036947608 |
| 7 | 19603648572758 |
| 8 | 1960364533634092 |
| 9 | 196036449326991586 |
| 10 | 19603644912113783634 |
| 11 | 1960364490766613788860 |
| 12 | 196036449073440195974090 |
| 13 | 19603644907302101080472556 |
| 14 | 1960364490729905106089642146 |
| 15 | 196036449072986990521291164848 |