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 | 4 |
| 2 | 22 |
| 3 | 121 |
| 4 | 1086 |
| 5 | 10086 |
| 6 | 100066 |
| 7 | 1000165 |
| 8 | 10000426 |
| 9 | 100000165 |
| 10 | 1000000165 |
| 11 | 10000000165 |
| 12 | 100000000498 |
| 13 | 1000000000066 |
| 14 | 10000000000615 |
| 15 | 100000000000786 |
| 16 | 1000000000000426 |
| 17 | 10000000000000246 |
| 18 | 100000000000000642 |
| 19 | 1000000000000000462 |
| 20 | 10000000000000000246 |
| 21 | 100000000000000000282 |
| 22 | 1000000000000000000966 |