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 | 3 |
| 2 | 105 |
| 3 | 3665 |
| 4 | 123215 |
| 5 | 4051679 |
| 6 | 131630449 |
| 7 | 4248037953 |
| 8 | 136587740399 |
| 9 | 4382607093471 |
| 10 | 140457446235441 |
| 11 | 4498520188148993 |
| 12 | 144023056568886959 |
| 13 | 4610014925578108703 |
| 14 | 147543642097619999089 |
| 15 | 4721816707356538941633 |
| 16 | 151105755554498621737583 |
| 17 | 4835522406931884652356447 |