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 | 11 |
| 1 | 111 |
| 2 | 1211 |
| 3 | 13311 |
| 4 | 146411 |
| 5 | 1610511 |
| 6 | 17715611 |
| 7 | 194871711 |
| 8 | 2143588811 |
| 9 | 23579476911 |
| 10 | 259374246011 |
| 11 | 2853116706111 |
| 12 | 31384283767211 |
| 13 | 345227121439311 |
| 14 | 3797498335832411 |
| 15 | 41772481694156511 |
| 16 | 459497298635721611 |
| 17 | 5054470284992937711 |