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 | 5 |
| 2 | 11 |
| 3 | 101 |
| 4 | 191 |
| 5 | 16061 |
| 6 | 1748471 |
| 7 | 179868971 |
| 8 | 11027472011 |
| 9 | 13160106131 |
| 10 | 15130003151 |
| 11 | 15843234851 |
| 12 | 16420302461 |
| 13 | 16782228761 |
| 14 | 16861316861 |
| 15 | 17060706071 |
| 16 | 17374347371 |
| 17 | 18491419481 |
| 18 | 18697979681 |
| 19 | 19497279491 |