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) |
|---|---|
| 1 | 1 |
| 2 | 44 |
| 3 | 171 |
| 4 | 2772 |
| 5 | 50405 |
| 6 | 216612 |
| 7 | 1036301 |
| 8 | 21177112 |
| 9 | 100808001 |
| 10 | 1000900010 |
| 11 | 10011211001 |
| 12 | 210033330012 |
| 13 | 1000175710001 |
| 14 | 20001366310002 |
| 15 | 500000464000005 |
| 16 | 2110001551000112 |
| 17 | 10000027672000001 |
| 18 | 200000187781000002 |