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 | 52 |
| 2 | 2704 |
| 3 | 140608 |
| 4 | 4461435 |
| 5 | 136521398 |
| 6 | 3848548036 |
| 7 | 112831587094 |
| 8 | 3292640179737 |
| 9 | 97500493294819 |
| 10 | 2875530570969513 |
| 11 | 84985322553211150 |
| 12 | 2506681235723278913 |
| 13 | 73977340086823664092 |
| 14 | 2182270990001902317787 |
| 15 | 64391876501073035366505 |