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 | 9 |
| 2 | 36 |
| 3 | 6241 |
| 4 | 116964 |
| 5 | 418609 |
| 6 | 28121809 |
| 7 | 477247716 |
| 8 | 1277991001 |
| 9 | 1967188609 |
| 10 | 5111964004 |
| 11 | 7681646025 |
| 12 | 73073443041 |
| 13 | 79698371481 |
| 14 | 91424593225 |
| 15 | 120297291921 |
| 16 | 292293772164 |
| 17 | 318793485924 |
| 18 | 1954689202404 |
| 19 | 5429696889241 |
| 20 | 5480313774049 |
| 21 | 21718787556964 |
| 22 | 21921255096196 |