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 | 171 |
| 3 | 3276 |
| 4 | 66045 |
| 5 | 1370754 |
| 6 | 28989675 |
| 7 | 621216192 |
| 8 | 13442126049 |
| 9 | 293052087900 |
| 10 | 6426898010533 |
| 11 | 141629804643600 |
| 12 | 3133614810784185 |
| 13 | 69566517009302868 |
| 14 | 1548833316392624625 |
| 15 | 34569147570568156800 |
| 16 | 773240476721553042345 |
| 17 | 17328840976366636057110 |