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 | 2161 |
| 2 | 59023 |
| 3 | 1594297 |
| 4 | 31381059583 |
| 5 | 7625597484961 |
| 6 | 205891132094623 |
| 7 | 1570042899082081611640534537 |
| 8 | 381520424476945831628649898783 |
| 9 | 66555937033867822607895549241096482953017615834735226137 |