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) |
|---|---|
| 3 | 341 |
| 4 | 1105 |
| 5 | 10261 |
| 6 | 101101 |
| 7 | 1004653 |
| 8 | 10004681 |
| 9 | 100017223 |
| 10 | 1001152801 |
| 11 | 10000321321 |
| 12 | 100004790097 |
| 13 | 1000001376901 |
| 14 | 10000130243671 |
| 15 | 100000105970311 |
| 16 | 1000000191735161 |
| 17 | 10000006286491369 |
| 18 | 100000010102756401 |
| 19 | 1000000114865704261 |
| 20 | 10000000494514450733 |