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 | 73 |
| 3 | 757 |
| 4 | 262657 |
| 5 | 1772893 |
| 6 | 64008001 |
| 7 | 85775383 |
| 8 | 308933353 |
| 9 | 729027001 |
| 10 | 15625125001 |
| 11 | 17596420453 |
| 12 | 30841155073 |
| 13 | 46656216001 |
| 14 | 225200075257 |
| 15 | 885843322057 |
| 16 | 1126163480473 |
| 17 | 2565165803383 |
| 18 | 4608275809411 |
| 19 | 5789338864921 |
| 20 | 9685393594633 |
| 21 | 16157823282721 |
| 22 | 25002115044733 |