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 | 13 |
| 1 | 12 |
| 2 | 14 |
| 3 | 183 |
| 4 | 170 |
| 5 | 30941 |
| 6 | 157 |
| 7 | 5229043 |
| 8 | 28562 |
| 9 | 4829007 |
| 10 | 26521 |
| 11 | 149346699503 |
| 12 | 28393 |
| 13 | 25239592216021 |
| 14 | 4482037 |
| 15 | 753327121 |
| 16 | 815730722 |
| 17 | 720867993281778161 |
| 18 | 4824613 |
| 19 | 121826690864620509223 |
| 20 | 810932305 |