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 | 1 |
| 2 | 11 |
| 3 | 13 |
| 4 | 1401 |
| 5 | 26011 |
| 6 | 3811101 |
| 7 | 4121210101 |
| 8 | 61622201010001 |
| 9 | 1119522020100010001 |
| 10 | 1922822120100110001001 |
| 11 | 27281122120200110001002001 |
| 12 | 37331622120200210001002001000011 |