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 | 0 |
| 2 | 1 |
| 3 | 10000 |
| 4 | 14641 |
| 5 | 100000000 |
| 6 | 104060401 |
| 7 | 146410000 |
| 8 | 1000000000000 |
| 9 | 1004006004001 |
| 10 | 1040604010000 |
| 11 | 1464100000000 |
| 12 | 4228599998736 |
| 13 | 8670998958336 |
| 14 | 9748688599521 |
| 15 | 9948826238976 |
| 16 | 12598637895936 |
| 17 | 19226786746896 |
| 18 | 19896452775936 |
| 19 | 20699669996721 |
| 20 | 23768199069696 |
| 21 | 26599197668481 |