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 | 288203194368 |
| 2 | 2784485221024 |
| 3 | 6022068333568 |
| 4 | 9222502219776 |
| 5 | 9670153077344 |
| 6 | 10918228000032 |
| 7 | 15441787364576 |