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 | 11 |
| 2 | 231 |
| 3 | 5456 |
| 4 | 135751 |
| 5 | 3478761 |
| 6 | 90858768 |
| 7 | 2404808340 |
| 8 | 64276915527 |
| 9 | 1731030945644 |
| 10 | 46897636623981 |
| 11 | 1276749965026536 |
| 12 | 34898565177533200 |
| 13 | 957150015393611193 |
| 14 | 26327386978706181060 |
| 15 | 725971390105457325456 |
| 16 | 20062118235172477959495 |
| 17 | 555476984964439251664995 |