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 | 33 |
| 2 | 1089 |
| 3 | 35937 |
| 4 | 1185921 |
| 5 | 39135393 |
| 6 | 1291467969 |
| 7 | 42618442977 |
| 8 | 1406408618241 |
| 9 | 46411484401953 |
| 10 | 1531578985264449 |
| 11 | 50542106513726817 |
| 12 | 1667889514952984961 |
| 13 | 55040353993448503713 |
| 14 | 1816331681783800622529 |
| 15 | 59938945498865420543457 |
| 16 | 1977985201462558877934081 |
| 17 | 65273511648264442971824673 |