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 | 101 |
| 3 | 1020 |
| 4 | 10301 |
| 5 | 104030 |
| 6 | 1050601 |
| 7 | 10610040 |
| 8 | 107151001 |
| 9 | 1082120050 |
| 10 | 10928351501 |
| 11 | 110365635060 |
| 12 | 1114584702101 |
| 13 | 11256212656070 |
| 14 | 113676711262801 |
| 15 | 1148023325284080 |
| 16 | 11593909964103601 |
| 17 | 117087122966320090 |
| 18 | 1182465139627304501 |
| 19 | 11941738519239365100 |