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 | 1 |
| 1 | 262143 |
| 2 | 387158345 |
| 3 | 68332056247 |
| 4 | 3745977788889 |
| 5 | 97745259402791 |
| 6 | 1526853641242033 |
| 7 | 16385984911571535 |
| 8 | 132080236787517137 |
| 9 | 849905364703000879 |
| 10 | 4559917313492231481 |
| 11 | 21063415967393012423 |
| 12 | 85832073671072149225 |
| 13 | 314423447258679349527 |
| 14 | 1051013025824763647969 |