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 | 11 |
| 1 | 1071322781 |
| 2 | 45549998561 |
| 3 | 1388974666811 |
| 4 | 36073412603141 |
| 5 | 820230015839231 |
| 6 | 16469758685735471 |
| 7 | 308147713085128991 |