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 | 91 |
| 3 | 819 |
| 4 | 7122 |
| 5 | 61702 |
| 6 | 557224 |
| 7 | 5062320 |
| 8 | 45002763 |
| 9 | 395879190 |
| 10 | 3579400605 |
| 11 | 32487367715 |
| 12 | 294505958253 |