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) |
|---|---|
| 1 | 0 |
| 2 | 162 |
| 3 | 2086 |
| 4 | 3256 |
| 5 | 17546 |
| 6 | 182773 |
| 7 | 1275348 |
| 8 | 5557469 |
| 9 | 29725028 |
| 10 | 219531538 |
| 11 | 1417475683 |
| 12 | 7594793077 |
| 13 | 44320481404 |
| 14 | 286609212983 |
| 15 | 1773676415155 |
| 16 | 10321010368540 |
| 17 | 61768196817718 |
| 18 | 382689525785694 |
| 19 | 2335752911548794 |