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 | 10 |
| 3 | 110 |
| 4 | 1310 |
| 5 | 16610 |
| 6 | 221010 |
| 7 | 3051510 |
| 8 | 43357110 |
| 9 | 630098810 |
| 10 | 9324499610 |
| 11 | 140046944510 |
| 12 | 2129440330510 |
| 13 | 32716182966610 |
| 14 | 507115641523810 |
| 15 | 7920881045935110 |
| 16 | 124548017695545510 |
| 17 | 1969917348711212010 |